tedster - 12:56 am on Apr 26, 2011 (gmt 0)
<a href="#fragmentname"> does not seem to increase the "number of links" divisor.
<a href="#" onclick=[some function]> does seem to increase the "number of links" divisor.
This is a very tricky area to test, because Google has made so many changes to the way PR is calculated that I might be running into some other factor that I'm not accounting for.
If Google is really getting tripped up by this relatively common coding situation I'd be more than surprised - they've moved beyond the most common edge cases like this. However, I wouldn't be surprised that an "SEO spider tool" might have problems, such as the one mentioned in the first post.