20199786280

素因数分解:

$2^3\times 5^1\times {\mathrm{504994657}}^1$

素因数の和:504994668

約数の個数: 16

約数和(自身を含む): 45449519220

約数和(自身を除く): 25249732940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504994657, 1009989314, 2019978628, 2524973285, 4039957256, 5049946570, 10099893140, 20199786280]

約数ペア:

[(1, 20199786280), (2, 10099893140), (4, 5049946570), (5, 4039957256), (8, 2524973285), (10, 2019978628), (20, 1009989314), (40, 504994657)]