Divisor Sum of 23,625

Example of Sigma Function of Integer

 * $\sigma \left({23 \, 625}\right) = 49 \, 920$

where $\sigma$ denotes the $\sigma$ function.

Proof
We have that:
 * $23 \, 625 = 3^3 \times 5^3 \times 7$

Hence: