∃ c₁ > 0, ∃ c₂ > 0, ∃ d, (∀ t > 0, (Erdos859.DivisorSumSet t).HasDensity (d t)) ∧ Asymptotics.IsEquivalent Filter.atTop (fun t => d t) fun t => c₁ / Real.log ↑t ^ c₂