205010512

素因数分解:

$2^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 120

約数和(自身を含む): 488540160

約数和(自身を除く): 283529648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 49, 56, 58, 71, 98, 112, 116, 127, 142, 196, 203, 232, 254, 284, 392, 406, 464, 497, 508, 568, 784, 812, 889, 994, 1016, 1136, 1421, 1624, 1778, 1988, 2032, 2059, 2842, 3248, 3479, 3556, 3683, 3976, 4118, 5684, 6223, 6958, 7112, 7366, 7952, 8236, 9017, 11368, 12446, 13916, 14224, 14413, 14732, 16472, 18034, 22736, 24892, 25781, 27832, 28826, 29464, 32944, 36068, 49784, 51562, 55664, 57652, 58928, 63119, 72136, 99568, 100891, 103124, 115304, 126238, 144272, 180467, 201782, 206248, 230608, 252476, 261493, 360934, 403564, 412496, 441833, 504952, 522986, 721868, 807128, 883666, 1009904, 1045972, 1443736, 1614256, 1767332, 1830451, 2091944, 2887472, 3534664, 3660902, 4183888, 7069328, 7321804, 12813157, 14643608, 25626314, 29287216, 51252628, 102505256, 205010512]

約数ペア:

[(1, 205010512), (2, 102505256), (4, 51252628), (7, 29287216), (8, 25626314), (14, 14643608), (16, 12813157), (28, 7321804), (29, 7069328), (49, 4183888), (56, 3660902), (58, 3534664), (71, 2887472), (98, 2091944), (112, 1830451), (116, 1767332), (127, 1614256), (142, 1443736), (196, 1045972), (203, 1009904), (232, 883666), (254, 807128), (284, 721868), (392, 522986), (406, 504952), (464, 441833), (497, 412496), (508, 403564), (568, 360934), (784, 261493), (812, 252476), (889, 230608), (994, 206248), (1016, 201782), (1136, 180467), (1421, 144272), (1624, 126238), (1778, 115304), (1988, 103124), (2032, 100891), (2059, 99568), (2842, 72136), (3248, 63119), (3479, 58928), (3556, 57652), (3683, 55664), (3976, 51562), (4118, 49784), (5684, 36068), (6223, 32944), (6958, 29464), (7112, 28826), (7366, 27832), (7952, 25781), (8236, 24892), (9017, 22736), (11368, 18034), (12446, 16472), (13916, 14732), (14224, 14413)]