81486800

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2017}}^1$

素因数の和:2136

約数の個数: 60

約数和(自身を含む): 197808396

約数和(自身を除く): 116321596

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 2017, 2020, 2525, 4034, 4040, 5050, 8068, 8080, 10085, 10100, 16136, 20170, 20200, 32272, 40340, 40400, 50425, 80680, 100850, 161360, 201700, 203717, 403400, 407434, 806800, 814868, 1018585, 1629736, 2037170, 3259472, 4074340, 5092925, 8148680, 10185850, 16297360, 20371700, 40743400, 81486800]

約数ペア:

[(1, 81486800), (2, 40743400), (4, 20371700), (5, 16297360), (8, 10185850), (10, 8148680), (16, 5092925), (20, 4074340), (25, 3259472), (40, 2037170), (50, 1629736), (80, 1018585), (100, 814868), (101, 806800), (200, 407434), (202, 403400), (400, 203717), (404, 201700), (505, 161360), (808, 100850), (1010, 80680), (1616, 50425), (2017, 40400), (2020, 40340), (2525, 32272), (4034, 20200), (4040, 20170), (5050, 16136), (8068, 10100), (8080, 10085)]