81683780

素因数分解:

$2^2\times 5^1\times {\mathrm{877}}^1\times {\mathrm{4657}}^1$

素因数の和:5543

約数の個数: 24

約数和(自身を含む): 171768408

約数和(自身を除く): 90084628

約数列:

[1, 2, 4, 5, 10, 20, 877, 1754, 3508, 4385, 4657, 8770, 9314, 17540, 18628, 23285, 46570, 93140, 4084189, 8168378, 16336756, 20420945, 40841890, 81683780]

約数ペア:

[(1, 81683780), (2, 40841890), (4, 20420945), (5, 16336756), (10, 8168378), (20, 4084189), (877, 93140), (1754, 46570), (3508, 23285), (4385, 18628), (4657, 17540), (8770, 9314)]