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A=∑d∣1729!μ2(d)ϕ(d),B=1729!ϕ(1729!)A=\sum_{d|1729!}\frac{\mu^2(d)}{\phi(d)}, \hspace {15 mm} B=\frac{1729!}{\phi(1729!)}A=d∣1729!∑ϕ(d)μ2(d),B=ϕ(1729!)1729!
Find the relationship between AAA and BBB.
Notations
μ(d) \mu(d) μ(d) denotes the Möbius function.
ϕ(d)\phi(d) ϕ(d) denotes the Euler's totient function.
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