Use Clojure reducers to find Amicable numbers: https://en.wikipedia.org/wiki/Amicable_numbers.
Your program must find at least 20 pairs of Amicable numbers. More pairs and/or faster programs will get extra credit. Your programs will be tested on a standard lab configuration (AMD 8350 eight-core processor, such as sentinel, axiom, eva01, macross, kenshiro, reliant, neoprene, tang, bebop).
The quality of code will also be taken into account.