19496080

素因数分解:

$2^4\times 5^1\times {\mathrm{243701}}^1$

素因数の和:243714

約数の個数: 20

約数和(自身を含む): 45328572

約数和(自身を除く): 25832492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243701, 487402, 974804, 1218505, 1949608, 2437010, 3899216, 4874020, 9748040, 19496080]

約数ペア:

[(1, 19496080), (2, 9748040), (4, 4874020), (5, 3899216), (8, 2437010), (10, 1949608), (16, 1218505), (20, 974804), (40, 487402), (80, 243701)]