20940100

素因数分解:

$2^2\times 5^2\times {\mathrm{209401}}^1$

素因数の和:209415

約数の個数: 18

約数和(自身を含む): 45440234

約数和(自身を除く): 24500134

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 209401, 418802, 837604, 1047005, 2094010, 4188020, 5235025, 10470050, 20940100]

約数ペア:

[(1, 20940100), (2, 10470050), (4, 5235025), (5, 4188020), (10, 2094010), (20, 1047005), (25, 837604), (50, 418802), (100, 209401)]