1268728660

素因数分解:

$2^2\times 5^1\times {\mathrm{63436433}}^1$

素因数の和:63436442

約数の個数: 12

約数和(自身を含む): 2664330228

約数和(自身を除く): 1395601568

約数列:

[1, 2, 4, 5, 10, 20, 63436433, 126872866, 253745732, 317182165, 634364330, 1268728660]

約数ペア:

[(1, 1268728660), (2, 634364330), (4, 317182165), (5, 253745732), (10, 126872866), (20, 63436433)]