81125760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:129

約数の個数: 256

約数和(自身を含む): 282009600

約数和(自身を除く): 200883840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 31, 32, 40, 47, 48, 58, 60, 62, 64, 80, 87, 93, 94, 96, 116, 120, 124, 128, 141, 145, 155, 160, 174, 186, 188, 192, 232, 235, 240, 248, 282, 290, 310, 320, 348, 372, 376, 384, 435, 464, 465, 470, 480, 496, 564, 580, 620, 640, 696, 705, 744, 752, 870, 899, 928, 930, 940, 960, 992, 1128, 1160, 1240, 1363, 1392, 1410, 1457, 1488, 1504, 1740, 1798, 1856, 1860, 1880, 1920, 1984, 2256, 2320, 2480, 2697, 2726, 2784, 2820, 2914, 2976, 3008, 3480, 3596, 3712, 3720, 3760, 3968, 4089, 4371, 4495, 4512, 4640, 4960, 5394, 5452, 5568, 5640, 5828, 5952, 6016, 6815, 6960, 7192, 7285, 7440, 7520, 8178, 8742, 8990, 9024, 9280, 9920, 10788, 10904, 11136, 11280, 11656, 11904, 13485, 13630, 13920, 14384, 14570, 14880, 15040, 16356, 17484, 17980, 18048, 18560, 19840, 20445, 21576, 21808, 21855, 22560, 23312, 26970, 27260, 27840, 28768, 29140, 29760, 30080, 32712, 34968, 35960, 40890, 42253, 43152, 43616, 43710, 45120, 46624, 53940, 54520, 55680, 57536, 58280, 59520, 65424, 69936, 71920, 81780, 84506, 86304, 87232, 87420, 90240, 93248, 107880, 109040, 115072, 116560, 126759, 130848, 139872, 143840, 163560, 169012, 172608, 174464, 174840, 186496, 211265, 215760, 218080, 233120, 253518, 261696, 279744, 287680, 327120, 338024, 345216, 349680, 422530, 431520, 436160, 466240, 507036, 523392, 559488, 575360, 633795, 654240, 676048, 699360, 845060, 863040, 872320, 932480, 1014072, 1267590, 1308480, 1352096, 1398720, 1690120, 1726080, 2028144, 2535180, 2616960, 2704192, 2797440, 3380240, 4056288, 5070360, 5408384, 6760480, 8112576, 10140720, 13520960, 16225152, 20281440, 27041920, 40562880, 81125760]

約数ペア:

[(1, 81125760), (2, 40562880), (3, 27041920), (4, 20281440), (5, 16225152), (6, 13520960), (8, 10140720), (10, 8112576), (12, 6760480), (15, 5408384), (16, 5070360), (20, 4056288), (24, 3380240), (29, 2797440), (30, 2704192), (31, 2616960), (32, 2535180), (40, 2028144), (47, 1726080), (48, 1690120), (58, 1398720), (60, 1352096), (62, 1308480), (64, 1267590), (80, 1014072), (87, 932480), (93, 872320), (94, 863040), (96, 845060), (116, 699360), (120, 676048), (124, 654240), (128, 633795), (141, 575360), (145, 559488), (155, 523392), (160, 507036), (174, 466240), (186, 436160), (188, 431520), (192, 422530), (232, 349680), (235, 345216), (240, 338024), (248, 327120), (282, 287680), (290, 279744), (310, 261696), (320, 253518), (348, 233120), (372, 218080), (376, 215760), (384, 211265), (435, 186496), (464, 174840), (465, 174464), (470, 172608), (480, 169012), (496, 163560), (564, 143840), (580, 139872), (620, 130848), (640, 126759), (696, 116560), (705, 115072), (744, 109040), (752, 107880), (870, 93248), (899, 90240), (928, 87420), (930, 87232), (940, 86304), (960, 84506), (992, 81780), (1128, 71920), (1160, 69936), (1240, 65424), (1363, 59520), (1392, 58280), (1410, 57536), (1457, 55680), (1488, 54520), (1504, 53940), (1740, 46624), (1798, 45120), (1856, 43710), (1860, 43616), (1880, 43152), (1920, 42253), (1984, 40890), (2256, 35960), (2320, 34968), (2480, 32712), (2697, 30080), (2726, 29760), (2784, 29140), (2820, 28768), (2914, 27840), (2976, 27260), (3008, 26970), (3480, 23312), (3596, 22560), (3712, 21855), (3720, 21808), (3760, 21576), (3968, 20445), (4089, 19840), (4371, 18560), (4495, 18048), (4512, 17980), (4640, 17484), (4960, 16356), (5394, 15040), (5452, 14880), (5568, 14570), (5640, 14384), (5828, 13920), (5952, 13630), (6016, 13485), (6815, 11904), (6960, 11656), (7192, 11280), (7285, 11136), (7440, 10904), (7520, 10788), (8178, 9920), (8742, 9280), (8990, 9024)]