640188736

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:301

約数の個数: 126

約数和(自身を含む): 1480158330

約数和(自身を除く): 839969594

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 121, 152, 176, 209, 229, 242, 304, 352, 361, 418, 458, 484, 608, 704, 722, 836, 916, 968, 1216, 1444, 1672, 1832, 1936, 2299, 2519, 2888, 3344, 3664, 3872, 3971, 4351, 4598, 5038, 5776, 6688, 7328, 7744, 7942, 8702, 9196, 10076, 11552, 13376, 14656, 15884, 17404, 18392, 20152, 23104, 27709, 31768, 34808, 36784, 40304, 43681, 47861, 55418, 63536, 69616, 73568, 80608, 82669, 87362, 95722, 110836, 127072, 139232, 147136, 161216, 165338, 174724, 191444, 221672, 254144, 278464, 330676, 349448, 382888, 443344, 526471, 661352, 698896, 765776, 886688, 909359, 1052942, 1322704, 1397792, 1531552, 1773376, 1818718, 2105884, 2645408, 2795584, 3063104, 3637436, 4211768, 5290816, 7274872, 8423536, 10002949, 14549744, 16847072, 20005898, 29099488, 33694144, 40011796, 58198976, 80023592, 160047184, 320094368, 640188736]

約数ペア:

[(1, 640188736), (2, 320094368), (4, 160047184), (8, 80023592), (11, 58198976), (16, 40011796), (19, 33694144), (22, 29099488), (32, 20005898), (38, 16847072), (44, 14549744), (64, 10002949), (76, 8423536), (88, 7274872), (121, 5290816), (152, 4211768), (176, 3637436), (209, 3063104), (229, 2795584), (242, 2645408), (304, 2105884), (352, 1818718), (361, 1773376), (418, 1531552), (458, 1397792), (484, 1322704), (608, 1052942), (704, 909359), (722, 886688), (836, 765776), (916, 698896), (968, 661352), (1216, 526471), (1444, 443344), (1672, 382888), (1832, 349448), (1936, 330676), (2299, 278464), (2519, 254144), (2888, 221672), (3344, 191444), (3664, 174724), (3872, 165338), (3971, 161216), (4351, 147136), (4598, 139232), (5038, 127072), (5776, 110836), (6688, 95722), (7328, 87362), (7744, 82669), (7942, 80608), (8702, 73568), (9196, 69616), (10076, 63536), (11552, 55418), (13376, 47861), (14656, 43681), (15884, 40304), (17404, 36784), (18392, 34808), (20152, 31768), (23104, 27709)]