3987400

素因数分解:

$2^3\times 5^2\times {\mathrm{19937}}^1$

素因数の和:19953

約数の個数: 24

約数和(自身を含む): 9271170

約数和(自身を除く): 5283770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 19937, 39874, 79748, 99685, 159496, 199370, 398740, 498425, 797480, 996850, 1993700, 3987400]

約数ペア:

[(1, 3987400), (2, 1993700), (4, 996850), (5, 797480), (8, 498425), (10, 398740), (20, 199370), (25, 159496), (40, 99685), (50, 79748), (100, 39874), (200, 19937)]