201911180

素因数分解:

$2^2\times 5^1\times {\mathrm{10095559}}^1$

素因数の和:10095568

約数の個数: 12

約数和(自身を含む): 424013520

約数和(自身を除く): 222102340

約数列:

[1, 2, 4, 5, 10, 20, 10095559, 20191118, 40382236, 50477795, 100955590, 201911180]

約数ペア:

[(1, 201911180), (2, 100955590), (4, 50477795), (5, 40382236), (10, 20191118), (20, 10095559)]