280255360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 256

約数和(自身を含む): 860129280

約数和(自身を除く): 579873920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 47, 55, 56, 64, 70, 77, 80, 88, 94, 110, 112, 121, 128, 140, 154, 160, 176, 188, 220, 224, 235, 242, 280, 308, 320, 329, 352, 376, 385, 440, 448, 470, 484, 517, 560, 605, 616, 640, 658, 704, 752, 770, 847, 880, 896, 940, 968, 1034, 1120, 1210, 1232, 1316, 1331, 1408, 1504, 1540, 1645, 1694, 1760, 1880, 1936, 2068, 2240, 2420, 2464, 2585, 2632, 2662, 3008, 3080, 3290, 3388, 3520, 3619, 3760, 3872, 4136, 4235, 4480, 4840, 4928, 5170, 5264, 5324, 5687, 6016, 6160, 6580, 6655, 6776, 7040, 7238, 7520, 7744, 8272, 8470, 9317, 9680, 9856, 10340, 10528, 10648, 11374, 12320, 13160, 13310, 13552, 14476, 15040, 15488, 16544, 16940, 18095, 18634, 19360, 20680, 21056, 21296, 22748, 24640, 26320, 26620, 27104, 28435, 28952, 30080, 33088, 33880, 36190, 37268, 38720, 39809, 41360, 42112, 42592, 45496, 46585, 49280, 52640, 53240, 54208, 56870, 57904, 62557, 66176, 67760, 72380, 74536, 77440, 79618, 82720, 85184, 90992, 93170, 105280, 106480, 108416, 113740, 115808, 125114, 135520, 144760, 149072, 159236, 165440, 170368, 181984, 186340, 199045, 210560, 212960, 227480, 231616, 250228, 271040, 289520, 298144, 312785, 318472, 330880, 363968, 372680, 398090, 425920, 437899, 454960, 463232, 500456, 542080, 579040, 596288, 625570, 636944, 727936, 745360, 796180, 851840, 875798, 909920, 1000912, 1158080, 1192576, 1251140, 1273888, 1490720, 1592360, 1751596, 1819840, 2001824, 2189495, 2316160, 2502280, 2547776, 2981440, 3184720, 3503192, 3639680, 4003648, 4378990, 5004560, 5095552, 5962880, 6369440, 7006384, 8007296, 8757980, 10009120, 12738880, 14012768, 17515960, 20018240, 25477760, 28025536, 35031920, 40036480, 56051072, 70063840, 140127680, 280255360]

約数ペア:

[(1, 280255360), (2, 140127680), (4, 70063840), (5, 56051072), (7, 40036480), (8, 35031920), (10, 28025536), (11, 25477760), (14, 20018240), (16, 17515960), (20, 14012768), (22, 12738880), (28, 10009120), (32, 8757980), (35, 8007296), (40, 7006384), (44, 6369440), (47, 5962880), (55, 5095552), (56, 5004560), (64, 4378990), (70, 4003648), (77, 3639680), (80, 3503192), (88, 3184720), (94, 2981440), (110, 2547776), (112, 2502280), (121, 2316160), (128, 2189495), (140, 2001824), (154, 1819840), (160, 1751596), (176, 1592360), (188, 1490720), (220, 1273888), (224, 1251140), (235, 1192576), (242, 1158080), (280, 1000912), (308, 909920), (320, 875798), (329, 851840), (352, 796180), (376, 745360), (385, 727936), (440, 636944), (448, 625570), (470, 596288), (484, 579040), (517, 542080), (560, 500456), (605, 463232), (616, 454960), (640, 437899), (658, 425920), (704, 398090), (752, 372680), (770, 363968), (847, 330880), (880, 318472), (896, 312785), (940, 298144), (968, 289520), (1034, 271040), (1120, 250228), (1210, 231616), (1232, 227480), (1316, 212960), (1331, 210560), (1408, 199045), (1504, 186340), (1540, 181984), (1645, 170368), (1694, 165440), (1760, 159236), (1880, 149072), (1936, 144760), (2068, 135520), (2240, 125114), (2420, 115808), (2464, 113740), (2585, 108416), (2632, 106480), (2662, 105280), (3008, 93170), (3080, 90992), (3290, 85184), (3388, 82720), (3520, 79618), (3619, 77440), (3760, 74536), (3872, 72380), (4136, 67760), (4235, 66176), (4480, 62557), (4840, 57904), (4928, 56870), (5170, 54208), (5264, 53240), (5324, 52640), (5687, 49280), (6016, 46585), (6160, 45496), (6580, 42592), (6655, 42112), (6776, 41360), (7040, 39809), (7238, 38720), (7520, 37268), (7744, 36190), (8272, 33880), (8470, 33088), (9317, 30080), (9680, 28952), (9856, 28435), (10340, 27104), (10528, 26620), (10648, 26320), (11374, 24640), (12320, 22748), (13160, 21296), (13310, 21056), (13552, 20680), (14476, 19360), (15040, 18634), (15488, 18095), (16544, 16940)]