256637360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4283}}^1$

素因数の和:4410

約数の個数: 80

約数和(自身を含む): 688455936

約数和(自身を除く): 431818576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 749, 856, 1070, 1498, 1712, 2140, 2996, 3745, 4280, 4283, 5992, 7490, 8560, 8566, 11984, 14980, 17132, 21415, 29960, 29981, 34264, 42830, 59920, 59962, 68528, 85660, 119924, 149905, 171320, 239848, 299810, 342640, 458281, 479696, 599620, 916562, 1199240, 1833124, 2291405, 2398480, 3207967, 3666248, 4582810, 6415934, 7332496, 9165620, 12831868, 16039835, 18331240, 25663736, 32079670, 36662480, 51327472, 64159340, 128318680, 256637360]

約数ペア:

[(1, 256637360), (2, 128318680), (4, 64159340), (5, 51327472), (7, 36662480), (8, 32079670), (10, 25663736), (14, 18331240), (16, 16039835), (20, 12831868), (28, 9165620), (35, 7332496), (40, 6415934), (56, 4582810), (70, 3666248), (80, 3207967), (107, 2398480), (112, 2291405), (140, 1833124), (214, 1199240), (280, 916562), (428, 599620), (535, 479696), (560, 458281), (749, 342640), (856, 299810), (1070, 239848), (1498, 171320), (1712, 149905), (2140, 119924), (2996, 85660), (3745, 68528), (4280, 59962), (4283, 59920), (5992, 42830), (7490, 34264), (8560, 29981), (8566, 29960), (11984, 21415), (14980, 17132)]