80861120

素因数分解:

$2^6\times 5^1\times {\mathrm{252691}}^1$

素因数の和:252708

約数の個数: 28

約数和(自身を含む): 192551304

約数和(自身を除く): 111690184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252691, 505382, 1010764, 1263455, 2021528, 2526910, 4043056, 5053820, 8086112, 10107640, 16172224, 20215280, 40430560, 80861120]

約数ペア:

[(1, 80861120), (2, 40430560), (4, 20215280), (5, 16172224), (8, 10107640), (10, 8086112), (16, 5053820), (20, 4043056), (32, 2526910), (40, 2021528), (64, 1263455), (80, 1010764), (160, 505382), (320, 252691)]