20506280

素因数分解:

$2^3\times 5^1\times {\mathrm{512657}}^1$

素因数の和:512668

約数の個数: 16

約数和(自身を含む): 46139220

約数和(自身を除く): 25632940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512657, 1025314, 2050628, 2563285, 4101256, 5126570, 10253140, 20506280]

約数ペア:

[(1, 20506280), (2, 10253140), (4, 5126570), (5, 4101256), (8, 2563285), (10, 2050628), (20, 1025314), (40, 512657)]