80538620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129901}}^1$

素因数の和:129941

約数の個数: 24

約数和(自身を含む): 174588288

約数和(自身を除く): 94049668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 129901, 259802, 519604, 649505, 1299010, 2598020, 4026931, 8053862, 16107724, 20134655, 40269310, 80538620]

約数ペア:

[(1, 80538620), (2, 40269310), (4, 20134655), (5, 16107724), (10, 8053862), (20, 4026931), (31, 2598020), (62, 1299010), (124, 649505), (155, 519604), (310, 259802), (620, 129901)]