Divisor Sum of 381,028

Example of Divisor Sum of Integer

 * $\map {\sigma_1} {381 \, 028} = 666 \, 806$

where $\sigma_1$ denotes the divisor sum function.

Proof
We have that:
 * $381 \, 028 = 2^2 \times 95 \, 257$

Hence: