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Abstract
We study the distribution of the sequence of integers
2 ω ( n )
under the assumption of the strong Riemann hypothesis, where
ω ( n ) denotes the number of
distinct prime divisors of
n .
We provide an asymptotic formula for the sum
∑
n ≤ x 2 ω ( n ) under this assumption.
We also study the sum
∑
n ≤ x 2 ω ( n )
unconditionally.
Keywords
Dirichlet series, Riemann zeta function, Riemann
hypothesis, Perron formula
Mathematical Subject Classification
Primary: 11M06, 11M26
Milestones
Received: 10 December 2025
Revised: 17 April 2026
Accepted: 2 May 2026
Published: 10 May 2026
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