DivisorSet scans added as EnumDependentTemplate to MersenneNumberDivisorByDivisorCpuTesterWithTemplate. New Pow2Groups scan implemented based on statistics for high divisors. MersenneNumberDivisorByDivisorPrimeScan sessions integrated into MersenneNumberDivisorByDivisorPrimeScanSessionWithTemplate. Various micro optimizations to eliminate variable, unnecessary struct creations and continue scans in higher divisor ranges, when lower ranges are exhausted. --bydivisor-k-increment command-line argument added.

PerfectNumbers.Core/EnvironmentConfiguration.cs

@@ -18,6 +18,8 @@ public static class EnvironmentConfiguration
 	public static bool UseGpuOrder;
 	public static bool UseHybridOrder;
 	public static bool UseCpuOrder;
+	public static bool UsePow2GroupDivisors;
+	public static int ByDivisorSpecialRange;
 
 	[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
 	public static void Initialize()