20161255828

素因数分解:

$2^2\times 7^1\times {\mathrm{720044851}}^1$

素因数の和:720044862

約数の個数: 12

約数和(自身を含む): 40322511712

約数和(自身を除く): 20161255884

約数列:

[1, 2, 4, 7, 14, 28, 720044851, 1440089702, 2880179404, 5040313957, 10080627914, 20161255828]

約数ペア:

[(1, 20161255828), (2, 10080627914), (4, 5040313957), (7, 2880179404), (14, 1440089702), (28, 720044851)]