509927680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 1285659648

約数和(自身を除く): 775731968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 128, 142, 155, 160, 181, 248, 256, 284, 310, 320, 355, 362, 496, 568, 620, 640, 710, 724, 905, 992, 1136, 1240, 1280, 1420, 1448, 1810, 1984, 2201, 2272, 2480, 2840, 2896, 3620, 3968, 4402, 4544, 4960, 5611, 5680, 5792, 7240, 7936, 8804, 9088, 9920, 11005, 11222, 11360, 11584, 12851, 14480, 17608, 18176, 19840, 22010, 22444, 22720, 23168, 25702, 28055, 28960, 35216, 39680, 44020, 44888, 45440, 46336, 51404, 56110, 57920, 64255, 70432, 88040, 89776, 90880, 102808, 112220, 115840, 128510, 140864, 176080, 179552, 205616, 224440, 231680, 257020, 281728, 352160, 359104, 398381, 411232, 448880, 514040, 563456, 704320, 718208, 796762, 822464, 897760, 1028080, 1408640, 1436416, 1593524, 1644928, 1795520, 1991905, 2056160, 2817280, 3187048, 3289856, 3591040, 3983810, 4112320, 6374096, 7182080, 7967620, 8224640, 12748192, 15935240, 16449280, 25496384, 31870480, 50992768, 63740960, 101985536, 127481920, 254963840, 509927680]

約数ペア:

[(1, 509927680), (2, 254963840), (4, 127481920), (5, 101985536), (8, 63740960), (10, 50992768), (16, 31870480), (20, 25496384), (31, 16449280), (32, 15935240), (40, 12748192), (62, 8224640), (64, 7967620), (71, 7182080), (80, 6374096), (124, 4112320), (128, 3983810), (142, 3591040), (155, 3289856), (160, 3187048), (181, 2817280), (248, 2056160), (256, 1991905), (284, 1795520), (310, 1644928), (320, 1593524), (355, 1436416), (362, 1408640), (496, 1028080), (568, 897760), (620, 822464), (640, 796762), (710, 718208), (724, 704320), (905, 563456), (992, 514040), (1136, 448880), (1240, 411232), (1280, 398381), (1420, 359104), (1448, 352160), (1810, 281728), (1984, 257020), (2201, 231680), (2272, 224440), (2480, 205616), (2840, 179552), (2896, 176080), (3620, 140864), (3968, 128510), (4402, 115840), (4544, 112220), (4960, 102808), (5611, 90880), (5680, 89776), (5792, 88040), (7240, 70432), (7936, 64255), (8804, 57920), (9088, 56110), (9920, 51404), (11005, 46336), (11222, 45440), (11360, 44888), (11584, 44020), (12851, 39680), (14480, 35216), (17608, 28960), (18176, 28055), (19840, 25702), (22010, 23168), (22444, 22720)]