20605661440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176903}}^1$

素因数の和:176944

約数の個数: 144

約数和(自身を含む): 60747418368

約数和(自身を除く): 40141756928

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1820, 2080, 2240, 2912, 3328, 3640, 4160, 4480, 5824, 7280, 8320, 8960, 11648, 14560, 16640, 23296, 29120, 58240, 116480, 176903, 353806, 707612, 884515, 1238321, 1415224, 1769030, 2299739, 2476642, 2830448, 3538060, 4599478, 4953284, 5660896, 6191605, 7076120, 9198956, 9906568, 11321792, 11498695, 12383210, 14152240, 16098173, 18397912, 19813136, 22643584, 22997390, 24766420, 28304480, 32196346, 36795824, 39626272, 45287168, 45994780, 49532840, 56608960, 64392692, 73591648, 79252544, 80490865, 91989560, 99065680, 113217920, 128785384, 147183296, 158505088, 160981730, 183979120, 198131360, 226435840, 257570768, 294366592, 317010176, 321963460, 367958240, 396262720, 515141536, 588733184, 643926920, 735916480, 792525440, 1030283072, 1287853840, 1471832960, 1585050880, 2060566144, 2575707680, 2943665920, 4121132288, 5151415360, 10302830720, 20605661440]

約数ペア:

[(1, 20605661440), (2, 10302830720), (4, 5151415360), (5, 4121132288), (7, 2943665920), (8, 2575707680), (10, 2060566144), (13, 1585050880), (14, 1471832960), (16, 1287853840), (20, 1030283072), (26, 792525440), (28, 735916480), (32, 643926920), (35, 588733184), (40, 515141536), (52, 396262720), (56, 367958240), (64, 321963460), (65, 317010176), (70, 294366592), (80, 257570768), (91, 226435840), (104, 198131360), (112, 183979120), (128, 160981730), (130, 158505088), (140, 147183296), (160, 128785384), (182, 113217920), (208, 99065680), (224, 91989560), (256, 80490865), (260, 79252544), (280, 73591648), (320, 64392692), (364, 56608960), (416, 49532840), (448, 45994780), (455, 45287168), (520, 39626272), (560, 36795824), (640, 32196346), (728, 28304480), (832, 24766420), (896, 22997390), (910, 22643584), (1040, 19813136), (1120, 18397912), (1280, 16098173), (1456, 14152240), (1664, 12383210), (1792, 11498695), (1820, 11321792), (2080, 9906568), (2240, 9198956), (2912, 7076120), (3328, 6191605), (3640, 5660896), (4160, 4953284), (4480, 4599478), (5824, 3538060), (7280, 2830448), (8320, 2476642), (8960, 2299739), (11648, 1769030), (14560, 1415224), (16640, 1238321), (23296, 884515), (29120, 707612), (58240, 353806), (116480, 176903)]