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Erdős problem 448

Let τ(n)\tau(n) count the divisors of nn and τ+(n)\tau^+(n) count the number of kk such that nn has a divisor in [2k,2k+1)[2^k, 2^{k+1}). Is it true that, for all ϵ>0\epsilon > 0, τ+(n)<ϵτ(n) \tau^+(n) < \epsilon \cdot \tau(n) for almost all nn?

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sha256:68d61d43df9402333af7f1f005f5819a49ba9cd073e988385ba028e68f6dbcb5
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sha256:c2854f1e7b36a61da2f2b7bb8a942a6fbeb75650e7e536794cd64d496e4c693e
Observation
sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
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sha256:c1c3ca2b4a96ac1bfdbe46b59a67025832b6b96169266d86e23f391b68a238a6
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sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
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sha256:c9d14c459c518937e758918b5897dc3b22f1a55f07739afe99502f5b046c907a
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2415f78e850aeee50afdca525c6f2e0ea606f207

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