64129820

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{11411}}^1$

素因数の和:11701

約数の個数: 24

約数和(自身を含む): 135163728

約数和(自身を除く): 71033908

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 11411, 22822, 45644, 57055, 114110, 228220, 3206491, 6412982, 12825964, 16032455, 32064910, 64129820]

約数ペア:

[(1, 64129820), (2, 32064910), (4, 16032455), (5, 12825964), (10, 6412982), (20, 3206491), (281, 228220), (562, 114110), (1124, 57055), (1405, 45644), (2810, 22822), (5620, 11411)]