1656391680

素因数分解:

$2^{11}\times 3^4\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 240

約数和(自身を含む): 5939994060

約数和(自身を除く): 4283602380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 1997, 2048, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 3994, 4320, 4608, 5120, 5184, 5760, 5991, 6144, 6480, 6912, 7680, 7988, 8640, 9216, 9985, 10240, 10368, 11520, 11982, 12960, 13824, 15360, 15976, 17280, 17973, 18432, 19970, 20736, 23040, 23964, 25920, 27648, 29955, 30720, 31952, 34560, 35946, 39940, 41472, 46080, 47928, 51840, 53919, 55296, 59910, 63904, 69120, 71892, 79880, 82944, 89865, 92160, 95856, 103680, 107838, 119820, 127808, 138240, 143784, 159760, 161757, 165888, 179730, 191712, 207360, 215676, 239640, 255616, 269595, 276480, 287568, 319520, 323514, 359460, 383424, 414720, 431352, 479280, 511232, 539190, 575136, 639040, 647028, 718920, 766848, 808785, 829440, 862704, 958560, 1022464, 1078380, 1150272, 1278080, 1294056, 1437840, 1533696, 1617570, 1725408, 1917120, 2044928, 2156760, 2300544, 2556160, 2588112, 2875680, 3067392, 3235140, 3450816, 3834240, 4089856, 4313520, 4601088, 5112320, 5176224, 5751360, 6134784, 6470280, 6901632, 7668480, 8627040, 9202176, 10224640, 10352448, 11502720, 12269568, 12940560, 13803264, 15336960, 17254080, 18404352, 20449280, 20704896, 23005440, 25881120, 27606528, 30673920, 34508160, 36808704, 41409792, 46010880, 51762240, 55213056, 61347840, 69016320, 82819584, 92021760, 103524480, 110426112, 138032640, 165639168, 184043520, 207048960, 276065280, 331278336, 414097920, 552130560, 828195840, 1656391680]

約数ペア:

[(1, 1656391680), (2, 828195840), (3, 552130560), (4, 414097920), (5, 331278336), (6, 276065280), (8, 207048960), (9, 184043520), (10, 165639168), (12, 138032640), (15, 110426112), (16, 103524480), (18, 92021760), (20, 82819584), (24, 69016320), (27, 61347840), (30, 55213056), (32, 51762240), (36, 46010880), (40, 41409792), (45, 36808704), (48, 34508160), (54, 30673920), (60, 27606528), (64, 25881120), (72, 23005440), (80, 20704896), (81, 20449280), (90, 18404352), (96, 17254080), (108, 15336960), (120, 13803264), (128, 12940560), (135, 12269568), (144, 11502720), (160, 10352448), (162, 10224640), (180, 9202176), (192, 8627040), (216, 7668480), (240, 6901632), (256, 6470280), (270, 6134784), (288, 5751360), (320, 5176224), (324, 5112320), (360, 4601088), (384, 4313520), (405, 4089856), (432, 3834240), (480, 3450816), (512, 3235140), (540, 3067392), (576, 2875680), (640, 2588112), (648, 2556160), (720, 2300544), (768, 2156760), (810, 2044928), (864, 1917120), (960, 1725408), (1024, 1617570), (1080, 1533696), (1152, 1437840), (1280, 1294056), (1296, 1278080), (1440, 1150272), (1536, 1078380), (1620, 1022464), (1728, 958560), (1920, 862704), (1997, 829440), (2048, 808785), (2160, 766848), (2304, 718920), (2560, 647028), (2592, 639040), (2880, 575136), (3072, 539190), (3240, 511232), (3456, 479280), (3840, 431352), (3994, 414720), (4320, 383424), (4608, 359460), (5120, 323514), (5184, 319520), (5760, 287568), (5991, 276480), (6144, 269595), (6480, 255616), (6912, 239640), (7680, 215676), (7988, 207360), (8640, 191712), (9216, 179730), (9985, 165888), (10240, 161757), (10368, 159760), (11520, 143784), (11982, 138240), (12960, 127808), (13824, 119820), (15360, 107838), (15976, 103680), (17280, 95856), (17973, 92160), (18432, 89865), (19970, 82944), (20736, 79880), (23040, 71892), (23964, 69120), (25920, 63904), (27648, 59910), (29955, 55296), (30720, 53919), (31952, 51840), (34560, 47928), (35946, 46080), (39940, 41472)]