Divisor Sum of 1,571,328

Example of Sigma of Integer

 * $\sigma \left({1 \, 571 \, 328}\right) = 5 \, 106 \, 816$

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

Proof
We have that:
 * $1 \, 571 \, 328 = 2^9 \times 3^2 \times 11 \times 31$

Hence: