5471780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1997}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 11580408

約数和(自身を除く): 6108628

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 1997, 2740, 3994, 7988, 9985, 19970, 39940, 273589, 547178, 1094356, 1367945, 2735890, 5471780]

約数ペア:

[(1, 5471780), (2, 2735890), (4, 1367945), (5, 1094356), (10, 547178), (20, 273589), (137, 39940), (274, 19970), (548, 9985), (685, 7988), (1370, 3994), (1997, 2740)]