20109848645

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{990389}}^1$

素因数の和:990556

約数の個数: 16

約数和(自身を含む): 25100444160

約数和(自身を除く): 4990595515

約数列:

[1, 5, 31, 131, 155, 655, 4061, 20305, 990389, 4951945, 30702059, 129740959, 153510295, 648704795, 4021969729, 20109848645]

約数ペア:

[(1, 20109848645), (5, 4021969729), (31, 648704795), (131, 153510295), (155, 129740959), (655, 30702059), (4061, 4951945), (20305, 990389)]