640817408

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 288

約数和(自身を含む): 1766016000

約数和(自身を除く): 1125198592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 29, 32, 38, 44, 56, 58, 59, 64, 76, 77, 88, 112, 116, 118, 128, 133, 152, 154, 176, 203, 209, 224, 232, 236, 256, 266, 304, 308, 319, 352, 406, 413, 418, 448, 464, 472, 532, 551, 608, 616, 638, 649, 704, 812, 826, 836, 896, 928, 944, 1064, 1102, 1121, 1216, 1232, 1276, 1298, 1408, 1463, 1624, 1652, 1672, 1711, 1792, 1856, 1888, 2128, 2204, 2233, 2242, 2432, 2464, 2552, 2596, 2816, 2926, 3248, 3304, 3344, 3422, 3712, 3776, 3857, 4256, 4408, 4466, 4484, 4543, 4864, 4928, 5104, 5192, 5852, 6061, 6496, 6608, 6688, 6844, 7424, 7552, 7714, 7847, 8512, 8816, 8932, 8968, 9086, 9856, 10208, 10384, 11704, 11977, 12122, 12331, 12992, 13216, 13376, 13688, 15104, 15428, 15694, 17024, 17632, 17864, 17936, 18172, 18821, 19712, 20416, 20768, 23408, 23954, 24244, 24662, 25984, 26432, 26752, 27376, 30856, 31388, 32509, 34048, 35264, 35728, 35872, 36344, 37642, 40832, 41536, 42427, 46816, 47908, 48488, 49324, 51968, 52864, 53504, 54752, 61712, 62776, 65018, 70528, 71456, 71744, 72688, 75284, 81664, 83072, 84854, 86317, 93632, 95816, 96976, 98648, 105728, 109504, 123424, 125552, 130036, 131747, 141056, 142912, 143488, 145376, 150568, 166144, 169708, 172634, 187264, 191632, 193952, 197296, 219008, 227563, 246848, 251104, 260072, 263494, 285824, 286976, 290752, 301136, 339416, 345268, 357599, 374528, 383264, 387904, 394592, 438016, 455126, 493696, 502208, 520144, 526988, 571648, 581504, 602272, 678832, 690536, 715198, 766528, 775808, 789184, 910252, 987392, 1004416, 1040288, 1053976, 1163008, 1204544, 1357664, 1381072, 1430396, 1533056, 1551616, 1578368, 1820504, 2008832, 2080576, 2107952, 2409088, 2503193, 2715328, 2762144, 2860792, 3066112, 3156736, 3641008, 4161152, 4215904, 4818176, 5006386, 5430656, 5524288, 5721584, 7282016, 8322304, 8431808, 10012772, 10861312, 11048576, 11443168, 14564032, 16863616, 20025544, 22097152, 22886336, 29128064, 33727232, 40051088, 45772672, 58256128, 80102176, 91545344, 160204352, 320408704, 640817408]

約数ペア:

[(1, 640817408), (2, 320408704), (4, 160204352), (7, 91545344), (8, 80102176), (11, 58256128), (14, 45772672), (16, 40051088), (19, 33727232), (22, 29128064), (28, 22886336), (29, 22097152), (32, 20025544), (38, 16863616), (44, 14564032), (56, 11443168), (58, 11048576), (59, 10861312), (64, 10012772), (76, 8431808), (77, 8322304), (88, 7282016), (112, 5721584), (116, 5524288), (118, 5430656), (128, 5006386), (133, 4818176), (152, 4215904), (154, 4161152), (176, 3641008), (203, 3156736), (209, 3066112), (224, 2860792), (232, 2762144), (236, 2715328), (256, 2503193), (266, 2409088), (304, 2107952), (308, 2080576), (319, 2008832), (352, 1820504), (406, 1578368), (413, 1551616), (418, 1533056), (448, 1430396), (464, 1381072), (472, 1357664), (532, 1204544), (551, 1163008), (608, 1053976), (616, 1040288), (638, 1004416), (649, 987392), (704, 910252), (812, 789184), (826, 775808), (836, 766528), (896, 715198), (928, 690536), (944, 678832), (1064, 602272), (1102, 581504), (1121, 571648), (1216, 526988), (1232, 520144), (1276, 502208), (1298, 493696), (1408, 455126), (1463, 438016), (1624, 394592), (1652, 387904), (1672, 383264), (1711, 374528), (1792, 357599), (1856, 345268), (1888, 339416), (2128, 301136), (2204, 290752), (2233, 286976), (2242, 285824), (2432, 263494), (2464, 260072), (2552, 251104), (2596, 246848), (2816, 227563), (2926, 219008), (3248, 197296), (3304, 193952), (3344, 191632), (3422, 187264), (3712, 172634), (3776, 169708), (3857, 166144), (4256, 150568), (4408, 145376), (4466, 143488), (4484, 142912), (4543, 141056), (4864, 131747), (4928, 130036), (5104, 125552), (5192, 123424), (5852, 109504), (6061, 105728), (6496, 98648), (6608, 96976), (6688, 95816), (6844, 93632), (7424, 86317), (7552, 84854), (7714, 83072), (7847, 81664), (8512, 75284), (8816, 72688), (8932, 71744), (8968, 71456), (9086, 70528), (9856, 65018), (10208, 62776), (10384, 61712), (11704, 54752), (11977, 53504), (12122, 52864), (12331, 51968), (12992, 49324), (13216, 48488), (13376, 47908), (13688, 46816), (15104, 42427), (15428, 41536), (15694, 40832), (17024, 37642), (17632, 36344), (17864, 35872), (17936, 35728), (18172, 35264), (18821, 34048), (19712, 32509), (20416, 31388), (20768, 30856), (23408, 27376), (23954, 26752), (24244, 26432), (24662, 25984)]