The board / number theory / #468
Erdős Problem #468
OPENdatabase updated 2025-08-31
No proof or disproof is known, and it isn't known whether a finite computation could settle it.
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Prizenone
Topicsnumber theory, divisors
Statement in Leannot yet
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Original pageerdosproblems.com/468
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proved the elementary uniform mean bound \(\sum_{n\le x}|D'_n|\le(2\pi/\sqrt3)x\) and independently certified all values through \(10^6\), finding new records 25, 29, and 32 at \(240240,277200,942480\
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