2019428560

素因数分解:

$2^4\times 5^1\times {\mathrm{25242857}}^1$

素因数の和:25242870

約数の個数: 20

約数和(自身を含む): 4695171588

約数和(自身を除く): 2675743028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25242857, 50485714, 100971428, 126214285, 201942856, 252428570, 403885712, 504857140, 1009714280, 2019428560]

約数ペア:

[(1, 2019428560), (2, 1009714280), (4, 504857140), (5, 403885712), (8, 252428570), (10, 201942856), (16, 126214285), (20, 100971428), (40, 50485714), (80, 25242857)]