21576080

素因数分解:

$2^4\times 5^1\times {\mathrm{269701}}^1$

素因数の和:269714

約数の個数: 20

約数和(自身を含む): 50164572

約数和(自身を除く): 28588492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269701, 539402, 1078804, 1348505, 2157608, 2697010, 4315216, 5394020, 10788040, 21576080]

約数ペア:

[(1, 21576080), (2, 10788040), (4, 5394020), (5, 4315216), (8, 2697010), (10, 2157608), (16, 1348505), (20, 1078804), (40, 539402), (80, 269701)]