Ratio of 2016 to Aliquot Sum/Historical Note

Historical Note on Ratio of 2016 to Aliquot Sum

Leonard Eugene Dickson reports in his $1919$ work History of the Theory of Numbers, Volume I that this result was noted by Pierre de Fermat, in response to Marin Mersenne's observation that $360$ has the same property.

Sources

• 1919: Leonard Eugene Dickson: History of the Theory of Numbers: Volume $\text { I }$: Chapter $\text {II}$. Formulas for the Number and Sum of Divisors, Problems of Fermat and Wallis