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Omni-MATH / Given a fixed positive integer a≥9. Prove: There exist finitely many positive integers n, satisfying: (1)τ(n)=a (2)n|ϕ(n)+σ(n) Note: For positive integer n, τ(n) is the number of p… · Discussion
Discussing Given a fixed positive integer a≥9. Prove: There exist finitely many positive integers n, satisfying: (1)τ(n)=a (2)n|ϕ(n)+σ(n) Note: For positive integer n, τ(n) is the number of p… · Omni-MATH
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