2600778220

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{128879}}^1$

素因数の和:129897

約数の個数: 24

約数和(自身を含む): 5467089600

約数和(自身を除く): 2866311380

約数列:

[1, 2, 4, 5, 10, 20, 1009, 2018, 4036, 5045, 10090, 20180, 128879, 257758, 515516, 644395, 1288790, 2577580, 130038911, 260077822, 520155644, 650194555, 1300389110, 2600778220]

約数ペア:

[(1, 2600778220), (2, 1300389110), (4, 650194555), (5, 520155644), (10, 260077822), (20, 130038911), (1009, 2577580), (2018, 1288790), (4036, 644395), (5045, 515516), (10090, 257758), (20180, 128879)]