11122780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4001}}^1$

素因数の和:4149

約数の個数: 24

約数和(自身を含む): 23531760

約数和(自身を除く): 12408980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4001, 8002, 16004, 20005, 40010, 80020, 556139, 1112278, 2224556, 2780695, 5561390, 11122780]

約数ペア:

[(1, 11122780), (2, 5561390), (4, 2780695), (5, 2224556), (10, 1112278), (20, 556139), (139, 80020), (278, 40010), (556, 20005), (695, 16004), (1390, 8002), (2780, 4001)]