Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2020 — Math Olympiad Vault — Part 01 Question 102

Math Olympiad Vault · MathNet 2020 — Math Olympiad Vault — Part 01

Question 102

A divisor $d$ of a positive integer $n$ is said to be a close divisor of $n$ if $\sqrt{n} \lt d \lt 2 \sqrt{n}$. Does there exist a positive integer with exactly 2020 close divisors?