Problem

Source: Centroamerican 2020, problem 6

Tags: number theory, prime factorization



A positive integer $N$ is interoceanic if its prime factorization $$N=p_1^{x_1}p_2^{x_2}\cdots p_k^{x_k}$$ satisfies $$x_1+x_2+\dots +x_k=p_1+p_2+\cdots +p_k.$$ Find all interoceanic numbers less than 2020.