19112780

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1049}}^1$

素因数の和:1969

約数の個数: 24

約数和(自身を含む): 40219200

約数和(自身を除く): 21106420

約数列:

[1, 2, 4, 5, 10, 20, 911, 1049, 1822, 2098, 3644, 4196, 4555, 5245, 9110, 10490, 18220, 20980, 955639, 1911278, 3822556, 4778195, 9556390, 19112780]

約数ペア:

[(1, 19112780), (2, 9556390), (4, 4778195), (5, 3822556), (10, 1911278), (20, 955639), (911, 20980), (1049, 18220), (1822, 10490), (2098, 9110), (3644, 5245), (4196, 4555)]