Problem

Source: 2024 Korea winter program practice test P2

Tags: number theory



Let $d(n)$ be the number of divisors of $n$. Show that there exists positive integers $m$ and $n$ such that there are exactly 2024 triples of integers $(i, j, k)$ satisfying the following condition: $0<i<j<k \le m$ and $d(n+i)d(n+j)d(n+k)$ is a multiple of $ijk$