19100402780

素因数分解:

$2^2\times 5^1\times {\mathrm{955020139}}^1$

素因数の和:955020148

約数の個数: 12

約数和(自身を含む): 40110845880

約数和(自身を除く): 21010443100

約数列:

[1, 2, 4, 5, 10, 20, 955020139, 1910040278, 3820080556, 4775100695, 9550201390, 19100402780]

約数ペア:

[(1, 19100402780), (2, 9550201390), (4, 4775100695), (5, 3820080556), (10, 1910040278), (20, 955020139)]