Combined the categories on the last list even more (the one with all factors of p-1 except 1 and p-1):
Code:
p-1 factors Total(20M-30M) numbers without factors to 2^66-2^68
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2-6 factors 112632 40184 = 35.68%
7-13 factors 51844 19517 = 37.65%
14-18 factors 114819 41715 = 36.33%
19-22 factors 68947 25980 = 37.68%
23-30 factors 70721 26417 = 37.35%
31-46 factors 75398 28691 = 38.05%
48-62 factors 32202 12254 = 38.05%
64-94 factors 37644 14338 = 38.09%
96-142 factors 14778 5713 = 38.66%
148-254 factors 7246 2851 = 39.35%
258-382 factors 942 388 = 41.19%
394-574 factors 79 38 = 48.10%
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Total 587252 218086 (=37.14%)