20518450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10009}}^1$

素因数の和:10062

約数の個数: 24

約数和(自身を含む): 39099060

約数和(自身を除く): 18580610

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10009, 20018, 50045, 100090, 250225, 410369, 500450, 820738, 2051845, 4103690, 10259225, 20518450]

約数ペア:

[(1, 20518450), (2, 10259225), (5, 4103690), (10, 2051845), (25, 820738), (41, 500450), (50, 410369), (82, 250225), (205, 100090), (410, 50045), (1025, 20018), (2050, 10009)]