Divisor Sum of 27,405

Example of Sigma Function of Integer

 * $\sigma \left({27 \, 405}\right) = 57 \, 600$

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

Proof
We have that:
 * $27 \, 405 = 3^3 \times 5 \times 7 \times 29$

Hence: