19505180

素因数分解:

$2^2\times 5^1\times {\mathrm{975259}}^1$

素因数の和:975268

約数の個数: 12

約数和(自身を含む): 40960920

約数和(自身を除く): 21455740

約数列:

[1, 2, 4, 5, 10, 20, 975259, 1950518, 3901036, 4876295, 9752590, 19505180]

約数ペア:

[(1, 19505180), (2, 9752590), (4, 4876295), (5, 3901036), (10, 1950518), (20, 975259)]