Problem On Fundamental Concepts of Number Theory

Let $P_{1},P_{2},P_{3},....,P_{k}$ are all possible positive factors of a number $n$ including $1$ and $n$ . It is given that $P_{1}+P_{2}+P_{3}+...+P_{k}=2018$ then $\sum_{i=1}^{k}$ $\frac{1}{P_{i}}$ $=$ $\frac{m}{n}$ .

Find the value of $m$ where $m$ is a positive integer.