20007740

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5527}}^1$

素因数の和:5717

約数の個数: 24

約数和(自身を含む): 42256032

約数和(自身を除く): 22248292

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5527, 11054, 22108, 27635, 55270, 110540, 1000387, 2000774, 4001548, 5001935, 10003870, 20007740]

約数ペア:

[(1, 20007740), (2, 10003870), (4, 5001935), (5, 4001548), (10, 2000774), (20, 1000387), (181, 110540), (362, 55270), (724, 27635), (905, 22108), (1810, 11054), (3620, 5527)]