1. For every natural number $n$ with 3 decimal digits (so the first digit is not zero), we consider the number $n_{0}$ obtained from $n$ by removing its digits that are equal to zero. For example, if $n=205$ then $n_{0}=25$.

Determine the number of integers $n$ with three digits for which $n_{0}$ is a divisor of $n$ different from $n$.