81507838

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1\times {\mathrm{1439}}^1$

素因数の和:1791

約数の個数: 16

約数和(自身を含む): 123863040

約数和(自身を除く): 42355202

約数列:

[1, 2, 127, 223, 254, 446, 1439, 2878, 28321, 56642, 182753, 320897, 365506, 641794, 40753919, 81507838]

約数ペア:

[(1, 81507838), (2, 40753919), (127, 641794), (223, 365506), (254, 320897), (446, 182753), (1439, 56642), (2878, 28321)]