19906360

素因数分解:

$2^3\times 5^1\times {\mathrm{497659}}^1$

素因数の和:497670

約数の個数: 16

約数和(自身を含む): 44789400

約数和(自身を除く): 24883040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 497659, 995318, 1990636, 2488295, 3981272, 4976590, 9953180, 19906360]

約数ペア:

[(1, 19906360), (2, 9953180), (4, 4976590), (5, 3981272), (8, 2488295), (10, 1990636), (20, 995318), (40, 497659)]