61207420

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{10891}}^1$

素因数の和:11181

約数の個数: 24

約数和(自身を含む): 129004848

約数和(自身を除く): 67797428

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 10891, 21782, 43564, 54455, 108910, 217820, 3060371, 6120742, 12241484, 15301855, 30603710, 61207420]

約数ペア:

[(1, 61207420), (2, 30603710), (4, 15301855), (5, 12241484), (10, 6120742), (20, 3060371), (281, 217820), (562, 108910), (1124, 54455), (1405, 43564), (2810, 21782), (5620, 10891)]