80728160

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21937}}^1$

素因数の和:21975

約数の個数: 48

約数和(自身を含む): 199021536

約数和(自身を除く): 118293376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 21937, 43874, 87748, 109685, 175496, 219370, 350992, 438740, 504551, 701984, 877480, 1009102, 1754960, 2018204, 2522755, 3509920, 4036408, 5045510, 8072816, 10091020, 16145632, 20182040, 40364080, 80728160]

約数ペア:

[(1, 80728160), (2, 40364080), (4, 20182040), (5, 16145632), (8, 10091020), (10, 8072816), (16, 5045510), (20, 4036408), (23, 3509920), (32, 2522755), (40, 2018204), (46, 1754960), (80, 1009102), (92, 877480), (115, 701984), (160, 504551), (184, 438740), (230, 350992), (368, 219370), (460, 175496), (736, 109685), (920, 87748), (1840, 43874), (3680, 21937)]