20704160

素因数分解:

$2^5\times 5^1\times {\mathrm{129401}}^1$

素因数の和:129416

約数の個数: 24

約数和(自身を含む): 48913956

約数和(自身を除く): 28209796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129401, 258802, 517604, 647005, 1035208, 1294010, 2070416, 2588020, 4140832, 5176040, 10352080, 20704160]

約数ペア:

[(1, 20704160), (2, 10352080), (4, 5176040), (5, 4140832), (8, 2588020), (10, 2070416), (16, 1294010), (20, 1035208), (32, 647005), (40, 517604), (80, 258802), (160, 129401)]