80582020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{129971}}^1$

素因数の和:130011

約数の個数: 24

約数和(自身を含む): 174682368

約数和(自身を除く): 94100348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 129971, 259942, 519884, 649855, 1299710, 2599420, 4029101, 8058202, 16116404, 20145505, 40291010, 80582020]

約数ペア:

[(1, 80582020), (2, 40291010), (4, 20145505), (5, 16116404), (10, 8058202), (20, 4029101), (31, 2599420), (62, 1299710), (124, 649855), (155, 519884), (310, 259942), (620, 129971)]