65139820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{21859}}^1$

素因数の和:22017

約数の個数: 24

約数和(自身を含む): 137718000

約数和(自身を除く): 72578180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 21859, 43718, 87436, 109295, 218590, 437180, 3256991, 6513982, 13027964, 16284955, 32569910, 65139820]

約数ペア:

[(1, 65139820), (2, 32569910), (4, 16284955), (5, 13027964), (10, 6513982), (20, 3256991), (149, 437180), (298, 218590), (596, 109295), (745, 87436), (1490, 43718), (2980, 21859)]