399608105

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{472909}}^1$

素因数の和:472940

約数の個数: 12

約数和(自身を含む): 519255180

約数和(自身を除く): 119647075

約数列:

[1, 5, 13, 65, 169, 845, 472909, 2364545, 6147817, 30739085, 79921621, 399608105]

約数ペア:

[(1, 399608105), (5, 79921621), (13, 30739085), (65, 6147817), (169, 2364545), (845, 472909)]