20172181520

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1\times {\mathrm{2927}}^1$

素因数の和:3528

約数の個数: 80

約数和(自身を含む): 47237119488

約数和(自身を除く): 27064937968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 311, 554, 622, 1108, 1244, 1385, 1555, 2216, 2488, 2770, 2927, 3110, 4432, 4976, 5540, 5854, 6220, 11080, 11708, 12440, 14635, 22160, 23416, 24880, 29270, 46832, 58540, 86147, 117080, 172294, 234160, 344588, 430735, 689176, 810779, 861470, 910297, 1378352, 1621558, 1722940, 1820594, 3243116, 3445880, 3641188, 4053895, 4551485, 6486232, 6891760, 7282376, 8107790, 9102970, 12972464, 14564752, 16215580, 18205940, 32431160, 36411880, 64862320, 72823760, 252152269, 504304538, 1008609076, 1260761345, 2017218152, 2521522690, 4034436304, 5043045380, 10086090760, 20172181520]

約数ペア:

[(1, 20172181520), (2, 10086090760), (4, 5043045380), (5, 4034436304), (8, 2521522690), (10, 2017218152), (16, 1260761345), (20, 1008609076), (40, 504304538), (80, 252152269), (277, 72823760), (311, 64862320), (554, 36411880), (622, 32431160), (1108, 18205940), (1244, 16215580), (1385, 14564752), (1555, 12972464), (2216, 9102970), (2488, 8107790), (2770, 7282376), (2927, 6891760), (3110, 6486232), (4432, 4551485), (4976, 4053895), (5540, 3641188), (5854, 3445880), (6220, 3243116), (11080, 1820594), (11708, 1722940), (12440, 1621558), (14635, 1378352), (22160, 910297), (23416, 861470), (24880, 810779), (29270, 689176), (46832, 430735), (58540, 344588), (86147, 234160), (117080, 172294)]