40820785

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 49770000

約数和(自身を除く): 8949215

約数列:

[1, 5, 149, 157, 349, 745, 785, 1745, 23393, 52001, 54793, 116965, 260005, 273965, 8164157, 40820785]

約数ペア:

[(1, 40820785), (5, 8164157), (149, 273965), (157, 260005), (349, 116965), (745, 54793), (785, 52001), (1745, 23393)]