theorem proved term proof

`sigma_one_fortyfive`

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formal statement (Lean)

 735theorem sigma_one_fortyfive : sigma 1 45 = 78 := by native_decide

Term-mode proof.

 736
 737/-- σ_1(360) = 1170. -/

Lean names referenced from this declaration's body.

sigma in IndisputableMonolith.Decision.AbileneParadox decl_use
sigma in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions decl_use