640924416

素因数分解:

$2^8\times 3^2\times {\mathrm{11}}^4\times {\mathrm{19}}^1$

素因数の和:85

約数の個数: 270

約数和(自身を含む): 2139710300

約数和(自身を除く): 1498785884

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 32, 33, 36, 38, 44, 48, 57, 64, 66, 72, 76, 88, 96, 99, 114, 121, 128, 132, 144, 152, 171, 176, 192, 198, 209, 228, 242, 256, 264, 288, 304, 342, 352, 363, 384, 396, 418, 456, 484, 528, 576, 608, 627, 684, 704, 726, 768, 792, 836, 912, 968, 1056, 1089, 1152, 1216, 1254, 1331, 1368, 1408, 1452, 1584, 1672, 1824, 1881, 1936, 2112, 2178, 2299, 2304, 2432, 2508, 2662, 2736, 2816, 2904, 3168, 3344, 3648, 3762, 3872, 3993, 4224, 4356, 4598, 4864, 5016, 5324, 5472, 5808, 6336, 6688, 6897, 7296, 7524, 7744, 7986, 8448, 8712, 9196, 10032, 10648, 10944, 11616, 11979, 12672, 13376, 13794, 14592, 14641, 15048, 15488, 15972, 17424, 18392, 20064, 20691, 21296, 21888, 23232, 23958, 25289, 25344, 26752, 27588, 29282, 30096, 30976, 31944, 34848, 36784, 40128, 41382, 42592, 43776, 43923, 46464, 47916, 50578, 53504, 55176, 58564, 60192, 63888, 69696, 73568, 75867, 80256, 82764, 85184, 87846, 92928, 95832, 101156, 110352, 117128, 120384, 127776, 131769, 139392, 147136, 151734, 160512, 165528, 170368, 175692, 191664, 202312, 220704, 227601, 234256, 240768, 255552, 263538, 278179, 278784, 294272, 303468, 331056, 340736, 351384, 383328, 404624, 441408, 455202, 468512, 481536, 511104, 527076, 556358, 588544, 606936, 662112, 702768, 766656, 809248, 834537, 882816, 910404, 937024, 1022208, 1054152, 1112716, 1213872, 1324224, 1405536, 1533312, 1618496, 1669074, 1765632, 1820808, 1874048, 2108304, 2225432, 2427744, 2503611, 2648448, 2811072, 3066624, 3236992, 3338148, 3641616, 3748096, 4216608, 4450864, 4855488, 5007222, 5296896, 5622144, 6473984, 6676296, 7283232, 8433216, 8901728, 9710976, 10014444, 11244288, 13352592, 14566464, 16866432, 17803456, 19421952, 20028888, 26705184, 29132928, 33732864, 35606912, 40057776, 53410368, 58265856, 71213824, 80115552, 106820736, 160231104, 213641472, 320462208, 640924416]

約数ペア:

[(1, 640924416), (2, 320462208), (3, 213641472), (4, 160231104), (6, 106820736), (8, 80115552), (9, 71213824), (11, 58265856), (12, 53410368), (16, 40057776), (18, 35606912), (19, 33732864), (22, 29132928), (24, 26705184), (32, 20028888), (33, 19421952), (36, 17803456), (38, 16866432), (44, 14566464), (48, 13352592), (57, 11244288), (64, 10014444), (66, 9710976), (72, 8901728), (76, 8433216), (88, 7283232), (96, 6676296), (99, 6473984), (114, 5622144), (121, 5296896), (128, 5007222), (132, 4855488), (144, 4450864), (152, 4216608), (171, 3748096), (176, 3641616), (192, 3338148), (198, 3236992), (209, 3066624), (228, 2811072), (242, 2648448), (256, 2503611), (264, 2427744), (288, 2225432), (304, 2108304), (342, 1874048), (352, 1820808), (363, 1765632), (384, 1669074), (396, 1618496), (418, 1533312), (456, 1405536), (484, 1324224), (528, 1213872), (576, 1112716), (608, 1054152), (627, 1022208), (684, 937024), (704, 910404), (726, 882816), (768, 834537), (792, 809248), (836, 766656), (912, 702768), (968, 662112), (1056, 606936), (1089, 588544), (1152, 556358), (1216, 527076), (1254, 511104), (1331, 481536), (1368, 468512), (1408, 455202), (1452, 441408), (1584, 404624), (1672, 383328), (1824, 351384), (1881, 340736), (1936, 331056), (2112, 303468), (2178, 294272), (2299, 278784), (2304, 278179), (2432, 263538), (2508, 255552), (2662, 240768), (2736, 234256), (2816, 227601), (2904, 220704), (3168, 202312), (3344, 191664), (3648, 175692), (3762, 170368), (3872, 165528), (3993, 160512), (4224, 151734), (4356, 147136), (4598, 139392), (4864, 131769), (5016, 127776), (5324, 120384), (5472, 117128), (5808, 110352), (6336, 101156), (6688, 95832), (6897, 92928), (7296, 87846), (7524, 85184), (7744, 82764), (7986, 80256), (8448, 75867), (8712, 73568), (9196, 69696), (10032, 63888), (10648, 60192), (10944, 58564), (11616, 55176), (11979, 53504), (12672, 50578), (13376, 47916), (13794, 46464), (14592, 43923), (14641, 43776), (15048, 42592), (15488, 41382), (15972, 40128), (17424, 36784), (18392, 34848), (20064, 31944), (20691, 30976), (21296, 30096), (21888, 29282), (23232, 27588), (23958, 26752), (25289, 25344)]