1980188

素因数分解:

$2^2\times 7^2\times {\mathrm{10103}}^1$

素因数の和:10121

約数の個数: 18

約数和(自身を含む): 4031496

約数和(自身を除く): 2051308

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 10103, 20206, 40412, 70721, 141442, 282884, 495047, 990094, 1980188]

約数ペア:

[(1, 1980188), (2, 990094), (4, 495047), (7, 282884), (14, 141442), (28, 70721), (49, 40412), (98, 20206), (196, 10103)]