78805580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{562897}}^1$

素因数の和:562913

約数の個数: 24

約数和(自身を含む): 189133728

約数和(自身を除く): 110328148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 562897, 1125794, 2251588, 2814485, 3940279, 5628970, 7880558, 11257940, 15761116, 19701395, 39402790, 78805580]

約数ペア:

[(1, 78805580), (2, 39402790), (4, 19701395), (5, 15761116), (7, 11257940), (10, 7880558), (14, 5628970), (20, 3940279), (28, 2814485), (35, 2251588), (70, 1125794), (140, 562897)]