420008615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{208441}}^1$

素因数の和:208490

約数の個数: 16

約数和(自身を含む): 560292096

約数和(自身を除く): 140283481

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 208441, 1042205, 2709733, 6461671, 13548665, 32308355, 84001723, 420008615]

約数ペア:

[(1, 420008615), (5, 84001723), (13, 32308355), (31, 13548665), (65, 6461671), (155, 2709733), (403, 1042205), (2015, 208441)]