28811260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 64774080

約数和(自身を除く): 35962820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 839, 1010, 1678, 1717, 2020, 3356, 3434, 4195, 6868, 8390, 8585, 14263, 16780, 17170, 28526, 34340, 57052, 71315, 84739, 142630, 169478, 285260, 338956, 423695, 847390, 1440563, 1694780, 2881126, 5762252, 7202815, 14405630, 28811260]

約数ペア:

[(1, 28811260), (2, 14405630), (4, 7202815), (5, 5762252), (10, 2881126), (17, 1694780), (20, 1440563), (34, 847390), (68, 423695), (85, 338956), (101, 285260), (170, 169478), (202, 142630), (340, 84739), (404, 71315), (505, 57052), (839, 34340), (1010, 28526), (1678, 17170), (1717, 16780), (2020, 14263), (3356, 8585), (3434, 8390), (4195, 6868)]