20856552640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{1031}}^1$

素因数の和:1887

約数の個数: 224

約数和(自身を含む): 62055134208

約数和(自身を除く): 41198581568

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 821, 880, 1031, 1120, 1232, 1540, 1642, 1760, 2062, 2240, 2464, 3080, 3284, 3520, 4105, 4124, 4928, 5155, 5747, 6160, 6568, 7217, 8210, 8248, 9031, 10310, 11341, 11494, 12320, 13136, 14434, 16420, 16496, 18062, 20620, 22682, 22988, 24640, 26272, 28735, 28868, 32840, 32992, 36085, 36124, 41240, 45155, 45364, 45976, 52544, 56705, 57470, 57736, 63217, 65680, 65984, 72170, 72248, 79387, 82480, 90310, 90728, 91952, 113410, 114940, 115472, 126434, 131360, 144340, 144496, 158774, 164960, 180620, 181456, 183904, 226820, 229880, 230944, 252868, 262720, 288680, 288992, 316085, 317548, 329920, 361240, 362912, 367808, 396935, 453640, 459760, 461888, 505736, 577360, 577984, 632170, 635096, 722480, 725824, 793870, 846451, 907280, 919520, 1011472, 1154720, 1264340, 1270192, 1444960, 1587740, 1692902, 1814560, 1839040, 2022944, 2309440, 2528680, 2540384, 2889920, 3175480, 3385804, 3629120, 4045888, 4232255, 5057360, 5080768, 5925157, 6350960, 6771608, 8464510, 9310961, 10114720, 11850314, 12701920, 13543216, 16929020, 18621922, 20229440, 23700628, 25403840, 27086432, 29625785, 33858040, 37243844, 46554805, 47401256, 54172864, 59251570, 65176727, 67716080, 74487688, 93109610, 94802512, 118503140, 130353454, 135432160, 148975376, 186219220, 189605024, 237006280, 260706908, 270864320, 297950752, 325883635, 372438440, 379210048, 474012560, 521413816, 595901504, 651767270, 744876880, 948025120, 1042827632, 1303534540, 1489753760, 1896050240, 2085655264, 2607069080, 2979507520, 4171310528, 5214138160, 10428276320, 20856552640]

約数ペア:

[(1, 20856552640), (2, 10428276320), (4, 5214138160), (5, 4171310528), (7, 2979507520), (8, 2607069080), (10, 2085655264), (11, 1896050240), (14, 1489753760), (16, 1303534540), (20, 1042827632), (22, 948025120), (28, 744876880), (32, 651767270), (35, 595901504), (40, 521413816), (44, 474012560), (55, 379210048), (56, 372438440), (64, 325883635), (70, 297950752), (77, 270864320), (80, 260706908), (88, 237006280), (110, 189605024), (112, 186219220), (140, 148975376), (154, 135432160), (160, 130353454), (176, 118503140), (220, 94802512), (224, 93109610), (280, 74487688), (308, 67716080), (320, 65176727), (352, 59251570), (385, 54172864), (440, 47401256), (448, 46554805), (560, 37243844), (616, 33858040), (704, 29625785), (770, 27086432), (821, 25403840), (880, 23700628), (1031, 20229440), (1120, 18621922), (1232, 16929020), (1540, 13543216), (1642, 12701920), (1760, 11850314), (2062, 10114720), (2240, 9310961), (2464, 8464510), (3080, 6771608), (3284, 6350960), (3520, 5925157), (4105, 5080768), (4124, 5057360), (4928, 4232255), (5155, 4045888), (5747, 3629120), (6160, 3385804), (6568, 3175480), (7217, 2889920), (8210, 2540384), (8248, 2528680), (9031, 2309440), (10310, 2022944), (11341, 1839040), (11494, 1814560), (12320, 1692902), (13136, 1587740), (14434, 1444960), (16420, 1270192), (16496, 1264340), (18062, 1154720), (20620, 1011472), (22682, 919520), (22988, 907280), (24640, 846451), (26272, 793870), (28735, 725824), (28868, 722480), (32840, 635096), (32992, 632170), (36085, 577984), (36124, 577360), (41240, 505736), (45155, 461888), (45364, 459760), (45976, 453640), (52544, 396935), (56705, 367808), (57470, 362912), (57736, 361240), (63217, 329920), (65680, 317548), (65984, 316085), (72170, 288992), (72248, 288680), (79387, 262720), (82480, 252868), (90310, 230944), (90728, 229880), (91952, 226820), (113410, 183904), (114940, 181456), (115472, 180620), (126434, 164960), (131360, 158774), (144340, 144496)]