20147647820

素因数分解:

$2^2\times 5^1\times {\mathrm{5381}}^1\times {\mathrm{187211}}^1$

素因数の和:192601

約数の個数: 24

約数和(自身を含む): 42318149328

約数和(自身を除く): 22170501508

約数列:

[1, 2, 4, 5, 10, 20, 5381, 10762, 21524, 26905, 53810, 107620, 187211, 374422, 748844, 936055, 1872110, 3744220, 1007382391, 2014764782, 4029529564, 5036911955, 10073823910, 20147647820]

約数ペア:

[(1, 20147647820), (2, 10073823910), (4, 5036911955), (5, 4029529564), (10, 2014764782), (20, 1007382391), (5381, 3744220), (10762, 1872110), (21524, 936055), (26905, 748844), (53810, 374422), (107620, 187211)]