51237820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{32429}}^1$

素因数の和:32517

約数の個数: 24

約数和(自身を含む): 108964800

約数和(自身を除く): 57726980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 32429, 64858, 129716, 162145, 324290, 648580, 2561891, 5123782, 10247564, 12809455, 25618910, 51237820]

約数ペア:

[(1, 51237820), (2, 25618910), (4, 12809455), (5, 10247564), (10, 5123782), (20, 2561891), (79, 648580), (158, 324290), (316, 162145), (395, 129716), (790, 64858), (1580, 32429)]