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MathNet 2023-part-03 — 191 problems (EN–VI) Question 66

Math Olympiad Vault · MathNet 2023-part-03 — 191 problems (EN–VI)

Question 66

We call a natural number $m$ "interesting" if for all natural numbers $1 \le n \le m$, we can write $n$ as a sum of distinct divisors of $m$. Prove that there are infinitely many interesting numbers of the form $k^2 + k + 2022$.