257185920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 256

約数和(自身を含む): 881280000

約数和(自身を除く): 624094080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 31, 32, 40, 48, 58, 60, 62, 64, 80, 87, 93, 96, 116, 120, 124, 128, 145, 149, 155, 160, 174, 186, 192, 232, 240, 248, 290, 298, 310, 320, 348, 372, 384, 435, 447, 464, 465, 480, 496, 580, 596, 620, 640, 696, 744, 745, 870, 894, 899, 928, 930, 960, 992, 1160, 1192, 1240, 1392, 1488, 1490, 1740, 1788, 1798, 1856, 1860, 1920, 1984, 2235, 2320, 2384, 2480, 2697, 2784, 2976, 2980, 3480, 3576, 3596, 3712, 3720, 3968, 4321, 4470, 4495, 4619, 4640, 4768, 4960, 5394, 5568, 5952, 5960, 6960, 7152, 7192, 7440, 8642, 8940, 8990, 9238, 9280, 9536, 9920, 10788, 11136, 11904, 11920, 12963, 13485, 13857, 13920, 14304, 14384, 14880, 17284, 17880, 17980, 18476, 18560, 19072, 19840, 21576, 21605, 23095, 23840, 25926, 26970, 27714, 27840, 28608, 28768, 29760, 34568, 35760, 35960, 36952, 43152, 43210, 46190, 47680, 51852, 53940, 55428, 55680, 57216, 57536, 59520, 64815, 69136, 69285, 71520, 71920, 73904, 86304, 86420, 92380, 95360, 103704, 107880, 110856, 115072, 129630, 133951, 138272, 138570, 143040, 143840, 147808, 172608, 172840, 184760, 207408, 215760, 221712, 259260, 267902, 276544, 277140, 286080, 287680, 295616, 345216, 345680, 369520, 401853, 414816, 431520, 443424, 518520, 535804, 553088, 554280, 575360, 591232, 669755, 691360, 739040, 803706, 829632, 863040, 886848, 1037040, 1071608, 1108560, 1339510, 1382720, 1478080, 1607412, 1659264, 1726080, 1773696, 2009265, 2074080, 2143216, 2217120, 2679020, 2765440, 2956160, 3214824, 4018530, 4148160, 4286432, 4434240, 5358040, 6429648, 8037060, 8296320, 8572864, 8868480, 10716080, 12859296, 16074120, 17145728, 21432160, 25718592, 32148240, 42864320, 51437184, 64296480, 85728640, 128592960, 257185920]

約数ペア:

[(1, 257185920), (2, 128592960), (3, 85728640), (4, 64296480), (5, 51437184), (6, 42864320), (8, 32148240), (10, 25718592), (12, 21432160), (15, 17145728), (16, 16074120), (20, 12859296), (24, 10716080), (29, 8868480), (30, 8572864), (31, 8296320), (32, 8037060), (40, 6429648), (48, 5358040), (58, 4434240), (60, 4286432), (62, 4148160), (64, 4018530), (80, 3214824), (87, 2956160), (93, 2765440), (96, 2679020), (116, 2217120), (120, 2143216), (124, 2074080), (128, 2009265), (145, 1773696), (149, 1726080), (155, 1659264), (160, 1607412), (174, 1478080), (186, 1382720), (192, 1339510), (232, 1108560), (240, 1071608), (248, 1037040), (290, 886848), (298, 863040), (310, 829632), (320, 803706), (348, 739040), (372, 691360), (384, 669755), (435, 591232), (447, 575360), (464, 554280), (465, 553088), (480, 535804), (496, 518520), (580, 443424), (596, 431520), (620, 414816), (640, 401853), (696, 369520), (744, 345680), (745, 345216), (870, 295616), (894, 287680), (899, 286080), (928, 277140), (930, 276544), (960, 267902), (992, 259260), (1160, 221712), (1192, 215760), (1240, 207408), (1392, 184760), (1488, 172840), (1490, 172608), (1740, 147808), (1788, 143840), (1798, 143040), (1856, 138570), (1860, 138272), (1920, 133951), (1984, 129630), (2235, 115072), (2320, 110856), (2384, 107880), (2480, 103704), (2697, 95360), (2784, 92380), (2976, 86420), (2980, 86304), (3480, 73904), (3576, 71920), (3596, 71520), (3712, 69285), (3720, 69136), (3968, 64815), (4321, 59520), (4470, 57536), (4495, 57216), (4619, 55680), (4640, 55428), (4768, 53940), (4960, 51852), (5394, 47680), (5568, 46190), (5952, 43210), (5960, 43152), (6960, 36952), (7152, 35960), (7192, 35760), (7440, 34568), (8642, 29760), (8940, 28768), (8990, 28608), (9238, 27840), (9280, 27714), (9536, 26970), (9920, 25926), (10788, 23840), (11136, 23095), (11904, 21605), (11920, 21576), (12963, 19840), (13485, 19072), (13857, 18560), (13920, 18476), (14304, 17980), (14384, 17880), (14880, 17284)]