20156360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71987}}^1$

素因数の和:72005

約数の個数: 32

約数和(自身を含む): 51831360

約数和(自身を除く): 31675000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71987, 143974, 287948, 359935, 503909, 575896, 719870, 1007818, 1439740, 2015636, 2519545, 2879480, 4031272, 5039090, 10078180, 20156360]

約数ペア:

[(1, 20156360), (2, 10078180), (4, 5039090), (5, 4031272), (7, 2879480), (8, 2519545), (10, 2015636), (14, 1439740), (20, 1007818), (28, 719870), (35, 575896), (40, 503909), (56, 359935), (70, 287948), (140, 143974), (280, 71987)]