MathDB
Apocalyptic numbers

Source: Rioplatense Olympiad 2012, Level 3, Problem 1

August 26, 2014
number theoryprime factorizationnumber theory proposed

Problem Statement

An integer nn is called apocalyptic if the addition of 66 different positive divisors of nn gives 35283528. For example, 20122012 is apocalyptic, because it has six divisors, 11, 22, 44, 503503, 10061006 and 20122012, that add up to 35283528.
Find the smallest positive apocalyptic number.