2600777780

素因数分解:

$2^2\times 5^1\times {\mathrm{130038889}}^1$

素因数の和:130038898

約数の個数: 12

約数和(自身を含む): 5461633380

約数和(自身を除く): 2860855600

約数列:

[1, 2, 4, 5, 10, 20, 130038889, 260077778, 520155556, 650194445, 1300388890, 2600777780]

約数ペア:

[(1, 2600777780), (2, 1300388890), (4, 650194445), (5, 520155556), (10, 260077778), (20, 130038889)]