80889920

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2237}}^1$

素因数の和:2367

約数の個数: 56

約数和(自身を含む): 194410584

約数和(自身を除く): 113520664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 565, 904, 1130, 1808, 2237, 2260, 3616, 4474, 4520, 7232, 8948, 9040, 11185, 17896, 18080, 22370, 35792, 36160, 44740, 71584, 89480, 143168, 178960, 252781, 357920, 505562, 715840, 1011124, 1263905, 2022248, 2527810, 4044496, 5055620, 8088992, 10111240, 16177984, 20222480, 40444960, 80889920]

約数ペア:

[(1, 80889920), (2, 40444960), (4, 20222480), (5, 16177984), (8, 10111240), (10, 8088992), (16, 5055620), (20, 4044496), (32, 2527810), (40, 2022248), (64, 1263905), (80, 1011124), (113, 715840), (160, 505562), (226, 357920), (320, 252781), (452, 178960), (565, 143168), (904, 89480), (1130, 71584), (1808, 44740), (2237, 36160), (2260, 35792), (3616, 22370), (4474, 18080), (4520, 17896), (7232, 11185), (8948, 9040)]