285507840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:672

約数の個数: 144

約数和(自身を含む): 919800000

約数和(自身を除く): 634292160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 149, 160, 192, 240, 256, 298, 320, 384, 447, 480, 499, 596, 640, 745, 768, 894, 960, 998, 1192, 1280, 1490, 1497, 1788, 1920, 1996, 2235, 2384, 2495, 2980, 2994, 3576, 3840, 3992, 4470, 4768, 4990, 5960, 5988, 7152, 7485, 7984, 8940, 9536, 9980, 11920, 11976, 14304, 14970, 15968, 17880, 19072, 19960, 23840, 23952, 28608, 29940, 31936, 35760, 38144, 39920, 47680, 47904, 57216, 59880, 63872, 71520, 74351, 79840, 95360, 95808, 114432, 119760, 127744, 143040, 148702, 159680, 190720, 191616, 223053, 239520, 286080, 297404, 319360, 371755, 383232, 446106, 479040, 572160, 594808, 638720, 743510, 892212, 958080, 1115265, 1189616, 1487020, 1784424, 1916160, 2230530, 2379232, 2974040, 3568848, 4461060, 4758464, 5948080, 7137696, 8922120, 9516928, 11896160, 14275392, 17844240, 19033856, 23792320, 28550784, 35688480, 47584640, 57101568, 71376960, 95169280, 142753920, 285507840]

約数ペア:

[(1, 285507840), (2, 142753920), (3, 95169280), (4, 71376960), (5, 57101568), (6, 47584640), (8, 35688480), (10, 28550784), (12, 23792320), (15, 19033856), (16, 17844240), (20, 14275392), (24, 11896160), (30, 9516928), (32, 8922120), (40, 7137696), (48, 5948080), (60, 4758464), (64, 4461060), (80, 3568848), (96, 2974040), (120, 2379232), (128, 2230530), (149, 1916160), (160, 1784424), (192, 1487020), (240, 1189616), (256, 1115265), (298, 958080), (320, 892212), (384, 743510), (447, 638720), (480, 594808), (499, 572160), (596, 479040), (640, 446106), (745, 383232), (768, 371755), (894, 319360), (960, 297404), (998, 286080), (1192, 239520), (1280, 223053), (1490, 191616), (1497, 190720), (1788, 159680), (1920, 148702), (1996, 143040), (2235, 127744), (2384, 119760), (2495, 114432), (2980, 95808), (2994, 95360), (3576, 79840), (3840, 74351), (3992, 71520), (4470, 63872), (4768, 59880), (4990, 57216), (5960, 47904), (5988, 47680), (7152, 39920), (7485, 38144), (7984, 35760), (8940, 31936), (9536, 29940), (9980, 28608), (11920, 23952), (11976, 23840), (14304, 19960), (14970, 19072), (15968, 17880)]