210698680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{309851}}^1$

素因数の和:309879

約数の個数: 32

約数和(自身を含む): 501960240

約数和(自身を除く): 291261560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 309851, 619702, 1239404, 1549255, 2478808, 3098510, 5267467, 6197020, 10534934, 12394040, 21069868, 26337335, 42139736, 52674670, 105349340, 210698680]

約数ペア:

[(1, 210698680), (2, 105349340), (4, 52674670), (5, 42139736), (8, 26337335), (10, 21069868), (17, 12394040), (20, 10534934), (34, 6197020), (40, 5267467), (68, 3098510), (85, 2478808), (136, 1549255), (170, 1239404), (340, 619702), (680, 309851)]