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How many positive integer factors of $2020$ have more than $3$ factors? (2020 AMC 8 Problems, Question \#17) 
Overseas Competition->Knowledge Point->Number Theory Modules->Prime Factorization
Since $2020=2^{2} \cdot 5 \cdot 101$, we can simply list its factors:  $$ 1,2,4,5,10,20,101,202,404,505,1010,2020 . $$  There are $12$ of these; only $1,2,4,5,101$ (i.e. $5$ of them) don\textquotesingle t have over $3$ factors, so the remaining $12-5=(\mathbf{B}) 7$ factors have more than $3$ factors. 