How to show "factors of $x$" in Math?

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How to show "factors of $x$" in Math? For example, how can I show "$x$ has $n$ factors" in Math?

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If $x\in\Bbb N$ the number of positive factors of $x$ is the divisor function of $x$, and is denoted $\sigma_0(x)$, $d(x)$, $\nu(x)$ or $\tau(x)$, so for your purpose you can follow any of those with $=n$.

The set of such factors has no standard symbol, so write it as $\{d\in\Bbb N:d\mid x\}$. If you intend more than just the positive factors, you can adjust these accordingly.