81875260

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{9241}}^1$

素因数の和:9693

約数の個数: 24

約数和(自身を含む): 172344816

約数和(自身を除く): 90469556

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8860, 9241, 18482, 36964, 46205, 92410, 184820, 4093763, 8187526, 16375052, 20468815, 40937630, 81875260]

約数ペア:

[(1, 81875260), (2, 40937630), (4, 20468815), (5, 16375052), (10, 8187526), (20, 4093763), (443, 184820), (886, 92410), (1772, 46205), (2215, 36964), (4430, 18482), (8860, 9241)]