128215160

素因数分解:

$2^3\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{3109}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 288856800

約数和(自身を除く): 160641640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1031, 2062, 3109, 4124, 5155, 6218, 8248, 10310, 12436, 15545, 20620, 24872, 31090, 41240, 62180, 124360, 3205379, 6410758, 12821516, 16026895, 25643032, 32053790, 64107580, 128215160]

約数ペア:

[(1, 128215160), (2, 64107580), (4, 32053790), (5, 25643032), (8, 16026895), (10, 12821516), (20, 6410758), (40, 3205379), (1031, 124360), (2062, 62180), (3109, 41240), (4124, 31090), (5155, 24872), (6218, 20620), (8248, 15545), (10310, 12436)]