20684385280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 264

約数和(自身を含む): 55160230608

約数和(自身を除く): 34475845328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 185, 208, 227, 256, 260, 296, 320, 370, 416, 454, 481, 512, 520, 592, 640, 740, 832, 908, 962, 1024, 1040, 1135, 1184, 1280, 1369, 1480, 1664, 1816, 1924, 2080, 2270, 2368, 2405, 2560, 2738, 2951, 2960, 3328, 3632, 3848, 4160, 4540, 4736, 4810, 5120, 5476, 5902, 5920, 6656, 6845, 7264, 7696, 8320, 8399, 9080, 9472, 9620, 10952, 11804, 11840, 13312, 13690, 14528, 14755, 15392, 16640, 16798, 17797, 18160, 18944, 19240, 21904, 23608, 23680, 27380, 29056, 29510, 30784, 33280, 33596, 35594, 36320, 37888, 38480, 41995, 43808, 47216, 47360, 54760, 58112, 59020, 61568, 66560, 67192, 71188, 72640, 76960, 83990, 87616, 88985, 94432, 94720, 109187, 109520, 116224, 118040, 123136, 134384, 142376, 145280, 153920, 167980, 175232, 177970, 188864, 189440, 218374, 219040, 232448, 236080, 246272, 268768, 284752, 290560, 307840, 310763, 335960, 350464, 355940, 377728, 436748, 438080, 472160, 492544, 537536, 545935, 569504, 581120, 615680, 621526, 671920, 700928, 711880, 755456, 873496, 876160, 944320, 1075072, 1091870, 1139008, 1162240, 1231360, 1243052, 1343840, 1401856, 1423760, 1510912, 1553815, 1746992, 1752320, 1888640, 2150144, 2183740, 2278016, 2462720, 2486104, 2687680, 2847520, 3021824, 3107630, 3493984, 3504640, 3777280, 4039919, 4300288, 4367480, 4556032, 4972208, 5375360, 5695040, 6215260, 6987968, 7009280, 7554560, 8079838, 8600576, 8734960, 9112064, 9944416, 10750720, 11390080, 12430520, 13975936, 15109120, 16159676, 17469920, 18224128, 19888832, 20199595, 21501440, 22780160, 24861040, 27951872, 32319352, 34939840, 39777664, 40399190, 43002880, 45560320, 49722080, 55903744, 64638704, 69879680, 79555328, 80798380, 91120640, 99444160, 111807488, 129277408, 139759360, 159110656, 161596760, 198888320, 258554816, 279518720, 318221312, 323193520, 397776640, 517109632, 559037440, 646387040, 795553280, 1034219264, 1292774080, 1591106560, 2068438528, 2585548160, 4136877056, 5171096320, 10342192640, 20684385280]

約数ペア:

[(1, 20684385280), (2, 10342192640), (4, 5171096320), (5, 4136877056), (8, 2585548160), (10, 2068438528), (13, 1591106560), (16, 1292774080), (20, 1034219264), (26, 795553280), (32, 646387040), (37, 559037440), (40, 517109632), (52, 397776640), (64, 323193520), (65, 318221312), (74, 279518720), (80, 258554816), (104, 198888320), (128, 161596760), (130, 159110656), (148, 139759360), (160, 129277408), (185, 111807488), (208, 99444160), (227, 91120640), (256, 80798380), (260, 79555328), (296, 69879680), (320, 64638704), (370, 55903744), (416, 49722080), (454, 45560320), (481, 43002880), (512, 40399190), (520, 39777664), (592, 34939840), (640, 32319352), (740, 27951872), (832, 24861040), (908, 22780160), (962, 21501440), (1024, 20199595), (1040, 19888832), (1135, 18224128), (1184, 17469920), (1280, 16159676), (1369, 15109120), (1480, 13975936), (1664, 12430520), (1816, 11390080), (1924, 10750720), (2080, 9944416), (2270, 9112064), (2368, 8734960), (2405, 8600576), (2560, 8079838), (2738, 7554560), (2951, 7009280), (2960, 6987968), (3328, 6215260), (3632, 5695040), (3848, 5375360), (4160, 4972208), (4540, 4556032), (4736, 4367480), (4810, 4300288), (5120, 4039919), (5476, 3777280), (5902, 3504640), (5920, 3493984), (6656, 3107630), (6845, 3021824), (7264, 2847520), (7696, 2687680), (8320, 2486104), (8399, 2462720), (9080, 2278016), (9472, 2183740), (9620, 2150144), (10952, 1888640), (11804, 1752320), (11840, 1746992), (13312, 1553815), (13690, 1510912), (14528, 1423760), (14755, 1401856), (15392, 1343840), (16640, 1243052), (16798, 1231360), (17797, 1162240), (18160, 1139008), (18944, 1091870), (19240, 1075072), (21904, 944320), (23608, 876160), (23680, 873496), (27380, 755456), (29056, 711880), (29510, 700928), (30784, 671920), (33280, 621526), (33596, 615680), (35594, 581120), (36320, 569504), (37888, 545935), (38480, 537536), (41995, 492544), (43808, 472160), (47216, 438080), (47360, 436748), (54760, 377728), (58112, 355940), (59020, 350464), (61568, 335960), (66560, 310763), (67192, 307840), (71188, 290560), (72640, 284752), (76960, 268768), (83990, 246272), (87616, 236080), (88985, 232448), (94432, 219040), (94720, 218374), (109187, 189440), (109520, 188864), (116224, 177970), (118040, 175232), (123136, 167980), (134384, 153920), (142376, 145280)]