168657820

素因数分解:

$2^2\times 5^1\times {\mathrm{1511}}^1\times {\mathrm{5581}}^1$

素因数の和:7101

約数の個数: 24

約数和(自身を含む): 354479328

約数和(自身を除く): 185821508

約数列:

[1, 2, 4, 5, 10, 20, 1511, 3022, 5581, 6044, 7555, 11162, 15110, 22324, 27905, 30220, 55810, 111620, 8432891, 16865782, 33731564, 42164455, 84328910, 168657820]

約数ペア:

[(1, 168657820), (2, 84328910), (4, 42164455), (5, 33731564), (10, 16865782), (20, 8432891), (1511, 111620), (3022, 55810), (5581, 30220), (6044, 27905), (7555, 22324), (11162, 15110)]