389492080

素因数分解:

$2^4\times 5^1\times {\mathrm{4868651}}^1$

素因数の和:4868664

約数の個数: 20

約数和(自身を含む): 905569272

約数和(自身を除く): 516077192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4868651, 9737302, 19474604, 24343255, 38949208, 48686510, 77898416, 97373020, 194746040, 389492080]

約数ペア:

[(1, 389492080), (2, 194746040), (4, 97373020), (5, 77898416), (8, 48686510), (10, 38949208), (16, 24343255), (20, 19474604), (40, 9737302), (80, 4868651)]