28901390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3251}}^1$

素因数の和:3392

約数の個数: 32

約数和(自身を含む): 59940864

約数和(自身を除く): 31039474

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 3251, 4445, 6502, 8890, 16255, 22757, 32510, 45514, 113785, 227570, 412877, 825754, 2064385, 2890139, 4128770, 5780278, 14450695, 28901390]

約数ペア:

[(1, 28901390), (2, 14450695), (5, 5780278), (7, 4128770), (10, 2890139), (14, 2064385), (35, 825754), (70, 412877), (127, 227570), (254, 113785), (635, 45514), (889, 32510), (1270, 22757), (1778, 16255), (3251, 8890), (4445, 6502)]