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Google does not pass pagerank across href="#" type links.
I do not yet have a definitive answer question on that so far, but the data I do have seems to say that href="#" links do increase the divisor, lowering the value of any other link on the page. In other words, it gets evaluated like a nofollow link.
href="#" do NOT increase the divisor, pr DOES get passed to other links on the page. This appears to be a special case. href="#offset" does increase the divisor.