64477480

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{2381}}^1$

素因数の和:3069

約数の個数: 32

約数和(自身を含む): 145349640

約数和(自身を除く): 80872160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1354, 2381, 2708, 3385, 4762, 5416, 6770, 9524, 11905, 13540, 19048, 23810, 27080, 47620, 95240, 1611937, 3223874, 6447748, 8059685, 12895496, 16119370, 32238740, 64477480]

約数ペア:

[(1, 64477480), (2, 32238740), (4, 16119370), (5, 12895496), (8, 8059685), (10, 6447748), (20, 3223874), (40, 1611937), (677, 95240), (1354, 47620), (2381, 27080), (2708, 23810), (3385, 19048), (4762, 13540), (5416, 11905), (6770, 9524)]