20959240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4637}}^1$

素因数の和:4761

約数の個数: 32

約数和(自身を含む): 47585880

約数和(自身を除く): 26626640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4637, 9274, 18548, 23185, 37096, 46370, 92740, 185480, 523981, 1047962, 2095924, 2619905, 4191848, 5239810, 10479620, 20959240]

約数ペア:

[(1, 20959240), (2, 10479620), (4, 5239810), (5, 4191848), (8, 2619905), (10, 2095924), (20, 1047962), (40, 523981), (113, 185480), (226, 92740), (452, 46370), (565, 37096), (904, 23185), (1130, 18548), (2260, 9274), (4520, 4637)]