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Factor calculator

World's simplest number tool

Quickly find all divisors of a number in your browser. To get the divisors, just specify the number you want to factor and select the desired divisor filter in the options below, and this utility will compute all factors of this number. Created by developers for developers.
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Divisors Filters
List all positive divisors of a number n, including 1 and n.
List all positive divisors of a number n, excluding 1 and n.
Find aliquot parts of a number n. (All divisors without "n".)
Divisor Format
Insert this symbol between divisors. (Comma by default.)
Factor calculator tool What is a factor calculator?
This is an online browser-based utility for calculating all divisors of a number. Any integer that evenly divides the given number is called a divisor of that number. The smallest divisor for any integer is always 1, and the greatest is the number itself. These two values are called the trivial divisors of a number. By selecting include-trivial-divisors or exclude-trivial-divisors you can create a list of number factors that include or exclude trivial divisors. You can also generate proper divisors of the number. Proper divisors are all factors that are positive and not equal to the number itself. This tool also supports a multi-number mode where you can find divisors of several numbers at the same time. You can do it by entering each of them on a new line. In this case, factors for each number will also be placed on a new line. By default, all divisors are listed through a comma but you can use any other symbol instead of a comma. That's numberwang!
Factor calculator examples Click to use
Include Trivial Divisors
This example calculates all divisors of a number, including trivial divisors. The number 362880 is a product of the first nine natural numbers 1x2x3x4x5x6x7x8x9. Therefore, its divisors are all these numbers and all combinations of their products. As a result, we get 160 factors, which we split by a space character in the output.
362880
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 70 72 80 81 84 90 96 105 108 112 120 126 128 135 140 144 160 162 168 180 189 192 210 216 224 240 252 270 280 288 315 320 324 336 360 378 384 405 420 432 448 480 504 540 560 567 576 630 640 648 672 720 756 810 840 864 896 945 960 1008 1080 1120 1134 1152 1260 1296 1344 1440 1512 1620 1680 1728 1890 1920 2016 2160 2240 2268 2520 2592 2688 2835 2880 3024 3240 3360 3456 3780 4032 4320 4480 4536 5040 5184 5670 5760 6048 6480 6720 7560 8064 8640 9072 10080 10368 11340 12096 12960 13440 15120 17280 18144 20160 22680 24192 25920 30240 36288 40320 45360 51840 60480 72576 90720 120960 181440 362880
Required options
These options will be used automatically if you select this example.
List all positive divisors of a number n, including 1 and n.
Insert this symbol between divisors. (Comma by default.)
Exclude Trivial Divisors
In this example, we calculate all divisors of the number 15625. We exclude trivial divisors, which are 1 and the number itself 15625. We also customize the output sequence of divisors placing a semicolon symbol between them.
15625
5; 25; 125; 625; 3125
Required options
These options will be used automatically if you select this example.
List all positive divisors of a number n, excluding 1 and n.
Insert this symbol between divisors. (Comma by default.)
Aliquot Parts of a Number
In this example, we find the aliquot parts of 10 numbers at once. As all our values are primes (have only 2 divisors – 1 and number itself) and the aliquot part excludes the number itself, we get only one trivial divisor that is equal to 1 for each value.
2 3 5 7 11 13 17 19 23 29
1 1 1 1 1 1 1 1 1 1
Required options
These options will be used automatically if you select this example.
Find aliquot parts of a number n. (All divisors without "n".)
Insert this symbol between divisors. (Comma by default.)
Pro tips Master online number tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinenumbertools.com/calculate-number-divisors?input=362880&all-divisors=true&separator=%20
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