Divisor mod-16 equidistribution conjecture for Φ4p(2)\Phi_{4p}(2)

Let P3\mathcal{P}_3 be the prime set used in the paper, let Φ4p(2)\Phi_{4p}(2) be the cyclotomic value, and let ω(N)\omega(N) denote the number of distinct prime divisors of NN. Divisor mod-16 equidistribution conjecture. There exists c>0c>0 such that for all sufficiently large odd primes p∈P3p\in\mathcal{P}_3,

#{r∣Φ4p(2):r≡1(mod16)}≥c ω(Φ4p(2)),\#\bigl\{r\mid\Phi_{4p}(2):r\equiv1\pmod{16}\bigr\}\geq c\,\omega\bigl(\Phi_{4p}(2)\bigr),

where ω(Φ4p(2))→∞\omega(\Phi_{4p}(2))\to\infty as p→∞p\to\infty. This is proposed as a more credible divisor-level target than density estimates for primes in a progression. Its status is unresolved in the source.

References

Primary source

Tom Maciejewski, “Bounded-box reductions in the Subbarao-Warren problem for unitary perfect numbers”, arXiv:2605.20475 (2026).

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