19630840

素因数分解:

$2^3\times 5^1\times {\mathrm{490771}}^1$

素因数の和:490782

約数の個数: 16

約数和(自身を含む): 44169480

約数和(自身を除く): 24538640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490771, 981542, 1963084, 2453855, 3926168, 4907710, 9815420, 19630840]

約数ペア:

[(1, 19630840), (2, 9815420), (4, 4907710), (5, 3926168), (8, 2453855), (10, 1963084), (20, 981542), (40, 490771)]