18116080

素因数分解:

$2^4\times 5^1\times {\mathrm{226451}}^1$

素因数の和:226464

約数の個数: 20

約数和(自身を含む): 42120072

約数和(自身を除く): 24003992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226451, 452902, 905804, 1132255, 1811608, 2264510, 3623216, 4529020, 9058040, 18116080]

約数ペア:

[(1, 18116080), (2, 9058040), (4, 4529020), (5, 3623216), (8, 2264510), (10, 1811608), (16, 1132255), (20, 905804), (40, 452902), (80, 226451)]