1918737400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^2\times {\mathrm{101}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 4710178440

約数和(自身を除く): 2791441040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 47, 50, 86, 94, 100, 101, 172, 188, 200, 202, 215, 235, 344, 376, 404, 430, 470, 505, 808, 860, 940, 1010, 1075, 1175, 1720, 1880, 2020, 2021, 2150, 2209, 2350, 2525, 4040, 4042, 4300, 4343, 4418, 4700, 4747, 5050, 8084, 8600, 8686, 8836, 9400, 9494, 10100, 10105, 11045, 16168, 17372, 17672, 18988, 20200, 20210, 21715, 22090, 23735, 34744, 37976, 40420, 43430, 44180, 47470, 50525, 55225, 80840, 86860, 88360, 94940, 94987, 101050, 108575, 110450, 118675, 173720, 189880, 189974, 202100, 204121, 217150, 220900, 223109, 237350, 379948, 404200, 408242, 434300, 441800, 446218, 474700, 474935, 759896, 816484, 868600, 892436, 949400, 949870, 1020605, 1115545, 1632968, 1784872, 1899740, 2041210, 2231090, 2374675, 3799480, 4082420, 4462180, 4749350, 5103025, 5577725, 8164840, 8924360, 9498700, 9593687, 10206050, 11155450, 18997400, 19187374, 20412100, 22310900, 38374748, 40824200, 44621800, 47968435, 76749496, 95936870, 191873740, 239842175, 383747480, 479684350, 959368700, 1918737400]

約数ペア:

[(1, 1918737400), (2, 959368700), (4, 479684350), (5, 383747480), (8, 239842175), (10, 191873740), (20, 95936870), (25, 76749496), (40, 47968435), (43, 44621800), (47, 40824200), (50, 38374748), (86, 22310900), (94, 20412100), (100, 19187374), (101, 18997400), (172, 11155450), (188, 10206050), (200, 9593687), (202, 9498700), (215, 8924360), (235, 8164840), (344, 5577725), (376, 5103025), (404, 4749350), (430, 4462180), (470, 4082420), (505, 3799480), (808, 2374675), (860, 2231090), (940, 2041210), (1010, 1899740), (1075, 1784872), (1175, 1632968), (1720, 1115545), (1880, 1020605), (2020, 949870), (2021, 949400), (2150, 892436), (2209, 868600), (2350, 816484), (2525, 759896), (4040, 474935), (4042, 474700), (4300, 446218), (4343, 441800), (4418, 434300), (4700, 408242), (4747, 404200), (5050, 379948), (8084, 237350), (8600, 223109), (8686, 220900), (8836, 217150), (9400, 204121), (9494, 202100), (10100, 189974), (10105, 189880), (11045, 173720), (16168, 118675), (17372, 110450), (17672, 108575), (18988, 101050), (20200, 94987), (20210, 94940), (21715, 88360), (22090, 86860), (23735, 80840), (34744, 55225), (37976, 50525), (40420, 47470), (43430, 44180)]