80942958820

素因数分解:

$2^2\times 5^1\times {\mathrm{4047147941}}^1$

素因数の和:4047147950

約数の個数: 12

約数和(自身を含む): 169980213564

約数和(自身を除く): 89037254744

約数列:

[1, 2, 4, 5, 10, 20, 4047147941, 8094295882, 16188591764, 20235739705, 40471479410, 80942958820]

約数ペア:

[(1, 80942958820), (2, 40471479410), (4, 20235739705), (5, 16188591764), (10, 8094295882), (20, 4047147941)]