90420140

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{14537}}^1$

素因数の和:14857

約数の個数: 24

約数和(自身を含む): 190505952

約数和(自身を除く): 100085812

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 14537, 29074, 58148, 72685, 145370, 290740, 4521007, 9042014, 18084028, 22605035, 45210070, 90420140]

約数ペア:

[(1, 90420140), (2, 45210070), (4, 22605035), (5, 18084028), (10, 9042014), (20, 4521007), (311, 290740), (622, 145370), (1244, 72685), (1555, 58148), (3110, 29074), (6220, 14537)]