291230960

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{8647}}^1$

素因数の和:9081

約数の個数: 40

約数和(自身を含む): 678798816

約数和(自身を除く): 387567856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 8647, 16840, 17294, 33680, 34588, 43235, 69176, 86470, 138352, 172940, 345880, 691760, 3640387, 7280774, 14561548, 18201935, 29123096, 36403870, 58246192, 72807740, 145615480, 291230960]

約数ペア:

[(1, 291230960), (2, 145615480), (4, 72807740), (5, 58246192), (8, 36403870), (10, 29123096), (16, 18201935), (20, 14561548), (40, 7280774), (80, 3640387), (421, 691760), (842, 345880), (1684, 172940), (2105, 138352), (3368, 86470), (4210, 69176), (6736, 43235), (8420, 34588), (8647, 33680), (16840, 17294)]