634916080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{111781}}^1$

素因数の和:111865

約数の個数: 40

約数和(自身を含む): 1496984544

約数和(自身を除く): 862068464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 111781, 223562, 447124, 558905, 894248, 1117810, 1788496, 2235620, 4471240, 7936451, 8942480, 15872902, 31745804, 39682255, 63491608, 79364510, 126983216, 158729020, 317458040, 634916080]

約数ペア:

[(1, 634916080), (2, 317458040), (4, 158729020), (5, 126983216), (8, 79364510), (10, 63491608), (16, 39682255), (20, 31745804), (40, 15872902), (71, 8942480), (80, 7936451), (142, 4471240), (284, 2235620), (355, 1788496), (568, 1117810), (710, 894248), (1136, 558905), (1420, 447124), (2840, 223562), (5680, 111781)]