19002017380

素因数分解:

$2^2\times 5^1\times {\mathrm{950100869}}^1$

素因数の和:950100878

約数の個数: 12

約数和(自身を含む): 39904236540

約数和(自身を除く): 20902219160

約数列:

[1, 2, 4, 5, 10, 20, 950100869, 1900201738, 3800403476, 4750504345, 9501008690, 19002017380]

約数ペア:

[(1, 19002017380), (2, 9501008690), (4, 4750504345), (5, 3800403476), (10, 1900201738), (20, 950100869)]