20461675

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 28591920

約数和(自身を除く): 8130245

約数列:

[1, 5, 13, 25, 29, 65, 145, 167, 169, 325, 377, 725, 835, 845, 1885, 2171, 4175, 4225, 4843, 4901, 9425, 10855, 24215, 24505, 28223, 54275, 62959, 121075, 122525, 141115, 314795, 705575, 818467, 1573975, 4092335, 20461675]

約数ペア:

[(1, 20461675), (5, 4092335), (13, 1573975), (25, 818467), (29, 705575), (65, 314795), (145, 141115), (167, 122525), (169, 121075), (325, 62959), (377, 54275), (725, 28223), (835, 24505), (845, 24215), (1885, 10855), (2171, 9425), (4175, 4901), (4225, 4843)]