25981385

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 31881600

約数和(自身を除く): 5900215

約数列:

[1, 5, 71, 163, 355, 449, 815, 2245, 11573, 31879, 57865, 73187, 159395, 365935, 5196277, 25981385]

約数ペア:

[(1, 25981385), (5, 5196277), (71, 365935), (163, 159395), (355, 73187), (449, 57865), (815, 31879), (2245, 11573)]