256507776

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:514

約数の個数: 256

約数和(自身を含む): 904780800

約数和(自身を除く): 648273024

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 27, 28, 32, 36, 42, 46, 48, 54, 56, 63, 64, 69, 72, 84, 92, 96, 108, 112, 126, 128, 138, 144, 161, 168, 184, 189, 192, 207, 216, 224, 252, 276, 288, 322, 336, 368, 378, 384, 414, 432, 448, 461, 483, 504, 552, 576, 621, 644, 672, 736, 756, 828, 864, 896, 922, 966, 1008, 1104, 1152, 1242, 1288, 1344, 1383, 1449, 1472, 1512, 1656, 1728, 1844, 1932, 2016, 2208, 2484, 2576, 2688, 2766, 2898, 2944, 3024, 3227, 3312, 3456, 3688, 3864, 4032, 4149, 4347, 4416, 4968, 5152, 5532, 5796, 6048, 6454, 6624, 7376, 7728, 8064, 8298, 8694, 8832, 9681, 9936, 10304, 10603, 11064, 11592, 12096, 12447, 12908, 13248, 14752, 15456, 16596, 17388, 19362, 19872, 20608, 21206, 22128, 23184, 24192, 24894, 25816, 26496, 29043, 29504, 30912, 31809, 33192, 34776, 38724, 39744, 42412, 44256, 46368, 49788, 51632, 58086, 59008, 61824, 63618, 66384, 69552, 74221, 77448, 79488, 84824, 87129, 88512, 92736, 95427, 99576, 103264, 116172, 127236, 132768, 139104, 148442, 154896, 169648, 174258, 177024, 185472, 190854, 199152, 206528, 222663, 232344, 254472, 265536, 278208, 286281, 296884, 309792, 339296, 348516, 381708, 398304, 413056, 445326, 464688, 508944, 531072, 556416, 572562, 593768, 619584, 667989, 678592, 697032, 763416, 796608, 890652, 929376, 1017888, 1145124, 1187536, 1239168, 1335978, 1357184, 1394064, 1526832, 1593216, 1781304, 1858752, 2003967, 2035776, 2290248, 2375072, 2671956, 2788128, 3053664, 3562608, 3717504, 4007934, 4071552, 4580496, 4750144, 5343912, 5576256, 6107328, 7125216, 8015868, 9160992, 9500288, 10687824, 11152512, 12214656, 14250432, 16031736, 18321984, 21375648, 28500864, 32063472, 36643968, 42751296, 64126944, 85502592, 128253888, 256507776]

約数ペア:

[(1, 256507776), (2, 128253888), (3, 85502592), (4, 64126944), (6, 42751296), (7, 36643968), (8, 32063472), (9, 28500864), (12, 21375648), (14, 18321984), (16, 16031736), (18, 14250432), (21, 12214656), (23, 11152512), (24, 10687824), (27, 9500288), (28, 9160992), (32, 8015868), (36, 7125216), (42, 6107328), (46, 5576256), (48, 5343912), (54, 4750144), (56, 4580496), (63, 4071552), (64, 4007934), (69, 3717504), (72, 3562608), (84, 3053664), (92, 2788128), (96, 2671956), (108, 2375072), (112, 2290248), (126, 2035776), (128, 2003967), (138, 1858752), (144, 1781304), (161, 1593216), (168, 1526832), (184, 1394064), (189, 1357184), (192, 1335978), (207, 1239168), (216, 1187536), (224, 1145124), (252, 1017888), (276, 929376), (288, 890652), (322, 796608), (336, 763416), (368, 697032), (378, 678592), (384, 667989), (414, 619584), (432, 593768), (448, 572562), (461, 556416), (483, 531072), (504, 508944), (552, 464688), (576, 445326), (621, 413056), (644, 398304), (672, 381708), (736, 348516), (756, 339296), (828, 309792), (864, 296884), (896, 286281), (922, 278208), (966, 265536), (1008, 254472), (1104, 232344), (1152, 222663), (1242, 206528), (1288, 199152), (1344, 190854), (1383, 185472), (1449, 177024), (1472, 174258), (1512, 169648), (1656, 154896), (1728, 148442), (1844, 139104), (1932, 132768), (2016, 127236), (2208, 116172), (2484, 103264), (2576, 99576), (2688, 95427), (2766, 92736), (2898, 88512), (2944, 87129), (3024, 84824), (3227, 79488), (3312, 77448), (3456, 74221), (3688, 69552), (3864, 66384), (4032, 63618), (4149, 61824), (4347, 59008), (4416, 58086), (4968, 51632), (5152, 49788), (5532, 46368), (5796, 44256), (6048, 42412), (6454, 39744), (6624, 38724), (7376, 34776), (7728, 33192), (8064, 31809), (8298, 30912), (8694, 29504), (8832, 29043), (9681, 26496), (9936, 25816), (10304, 24894), (10603, 24192), (11064, 23184), (11592, 22128), (12096, 21206), (12447, 20608), (12908, 19872), (13248, 19362), (14752, 17388), (15456, 16596)]