20270180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2161}}^1$

素因数の和:2244

約数の個数: 48

約数和(自身を含む): 49397376

約数和(自身を除く): 29127196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2161, 2345, 4322, 4690, 8644, 9380, 10805, 15127, 21610, 30254, 43220, 60508, 75635, 144787, 151270, 289574, 302540, 579148, 723935, 1013509, 1447870, 2027018, 2895740, 4054036, 5067545, 10135090, 20270180]

約数ペア:

[(1, 20270180), (2, 10135090), (4, 5067545), (5, 4054036), (7, 2895740), (10, 2027018), (14, 1447870), (20, 1013509), (28, 723935), (35, 579148), (67, 302540), (70, 289574), (134, 151270), (140, 144787), (268, 75635), (335, 60508), (469, 43220), (670, 30254), (938, 21610), (1340, 15127), (1876, 10805), (2161, 9380), (2345, 8644), (4322, 4690)]