488265625domain: NAppears in sequencesTriangular numbers whose sum of aliquot divisors is also a triangular number.at n=17A083675Composite numbers whose sum of unitary divisors is a multiple of the sum of their aliquot parts.at n=10A273813Terms k of A228058 for which A325814(k) is a multiple of A034460(k).at n=23A325822