31027820

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3109}}^1$

素因数の和:3617

約数の個数: 24

約数和(自身を含む): 65310000

約数和(自身を除く): 34282180

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 3109, 4990, 6218, 9980, 12436, 15545, 31090, 62180, 1551391, 3102782, 6205564, 7756955, 15513910, 31027820]

約数ペア:

[(1, 31027820), (2, 15513910), (4, 7756955), (5, 6205564), (10, 3102782), (20, 1551391), (499, 62180), (998, 31090), (1996, 15545), (2495, 12436), (3109, 9980), (4990, 6218)]