61256920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17207}}^1$

素因数の和:17307

約数の個数: 32

約数和(自身を含む): 139384800

約数和(自身を除く): 78127880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 17207, 34414, 68828, 86035, 137656, 172070, 344140, 688280, 1531423, 3062846, 6125692, 7657115, 12251384, 15314230, 30628460, 61256920]

約数ペア:

[(1, 61256920), (2, 30628460), (4, 15314230), (5, 12251384), (8, 7657115), (10, 6125692), (20, 3062846), (40, 1531423), (89, 688280), (178, 344140), (356, 172070), (445, 137656), (712, 86035), (890, 68828), (1780, 34414), (3560, 17207)]