68390515

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{541}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 83277216

約数和(自身を除く): 14886701

約数列:

[1, 5, 131, 193, 541, 655, 965, 2705, 25283, 70871, 104413, 126415, 354355, 522065, 13678103, 68390515]

約数ペア:

[(1, 68390515), (5, 13678103), (131, 522065), (193, 354355), (541, 126415), (655, 104413), (965, 70871), (2705, 25283)]