51053680

素因数分解:

$2^4\times 5^1\times {\mathrm{638171}}^1$

素因数の和:638184

約数の個数: 20

約数和(自身を含む): 118699992

約数和(自身を除く): 67646312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 638171, 1276342, 2552684, 3190855, 5105368, 6381710, 10210736, 12763420, 25526840, 51053680]

約数ペア:

[(1, 51053680), (2, 25526840), (4, 12763420), (5, 10210736), (8, 6381710), (10, 5105368), (16, 3190855), (20, 2552684), (40, 1276342), (80, 638171)]