128987755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{116731}}^1$

素因数の和:116766

約数の個数: 16

約数和(自身を含む): 176498784

約数和(自身を除く): 47511029

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 116731, 583655, 1517503, 1984427, 7587515, 9922135, 25797551, 128987755]

約数ペア:

[(1, 128987755), (5, 25797551), (13, 9922135), (17, 7587515), (65, 1984427), (85, 1517503), (221, 583655), (1105, 116731)]