56691640

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1999}}^1$

素因数の和:2719

約数の個数: 32

約数和(自身を含む): 127800000

約数和(自身を除く): 71108360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 1999, 2836, 3545, 3998, 5672, 7090, 7996, 9995, 14180, 15992, 19990, 28360, 39980, 79960, 1417291, 2834582, 5669164, 7086455, 11338328, 14172910, 28345820, 56691640]

約数ペア:

[(1, 56691640), (2, 28345820), (4, 14172910), (5, 11338328), (8, 7086455), (10, 5669164), (20, 2834582), (40, 1417291), (709, 79960), (1418, 39980), (1999, 28360), (2836, 19990), (3545, 15992), (3998, 14180), (5672, 9995), (7090, 7996)]