31435820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120907}}^1$

素因数の和:120929

約数の個数: 24

約数和(自身を含む): 71093904

約数和(自身を除く): 39658084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120907, 241814, 483628, 604535, 1209070, 1571791, 2418140, 3143582, 6287164, 7858955, 15717910, 31435820]

約数ペア:

[(1, 31435820), (2, 15717910), (4, 7858955), (5, 6287164), (10, 3143582), (13, 2418140), (20, 1571791), (26, 1209070), (52, 604535), (65, 483628), (130, 241814), (260, 120907)]