19222780

素因数分解:

$2^2\times 5^1\times {\mathrm{961139}}^1$

素因数の和:961148

約数の個数: 12

約数和(自身を含む): 40367880

約数和(自身を除く): 21145100

約数列:

[1, 2, 4, 5, 10, 20, 961139, 1922278, 3844556, 4805695, 9611390, 19222780]

約数ペア:

[(1, 19222780), (2, 9611390), (4, 4805695), (5, 3844556), (10, 1922278), (20, 961139)]