81639865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{50551}}^1$

素因数の和:50592

約数の個数: 16

約数和(自身を含む): 109192320

約数和(自身を除く): 27552455

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 50551, 252755, 859367, 960469, 4296835, 4802345, 16327973, 81639865]

約数ペア:

[(1, 81639865), (5, 16327973), (17, 4802345), (19, 4296835), (85, 960469), (95, 859367), (323, 252755), (1615, 50551)]