208112015

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{4001}}^1$

素因数の和:4210

約数の個数: 16

約数和(自身を含む): 254719296

約数和(自身を除く): 46607281

約数列:

[1, 5, 101, 103, 505, 515, 4001, 10403, 20005, 52015, 404101, 412103, 2020505, 2060515, 41622403, 208112015]

約数ペア:

[(1, 208112015), (5, 41622403), (101, 2060515), (103, 2020505), (505, 412103), (515, 404101), (4001, 52015), (10403, 20005)]