64903820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79151}}^1$

素因数の和:79201

約数の個数: 24

約数和(自身を含む): 139624128

約数和(自身を除く): 74720308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 79151, 158302, 316604, 395755, 791510, 1583020, 3245191, 6490382, 12980764, 16225955, 32451910, 64903820]

約数ペア:

[(1, 64903820), (2, 32451910), (4, 16225955), (5, 12980764), (10, 6490382), (20, 3245191), (41, 1583020), (82, 791510), (164, 395755), (205, 316604), (410, 158302), (820, 79151)]