18980245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4751}}^1$

素因数の和:4820

約数の個数: 16

約数和(自身を含む): 24634368

約数和(自身を除く): 5654123

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 4751, 23755, 80767, 223297, 403835, 1116485, 3796049, 18980245]

約数ペア:

[(1, 18980245), (5, 3796049), (17, 1116485), (47, 403835), (85, 223297), (235, 80767), (799, 23755), (3995, 4751)]