You can use the link_stat FQL table (see docs here: https://developers.facebook.com/docs/reference/fql/link_stat/) as follows:
select url, click_count, comment_count, like_count, share_count, total_count from link_stat where url in ('{url1}', '{url2}', ...)
I'd recommend that you use not too big batches of URLs, because the overall length of an FQL statement is not allowed to exceed 2048 characters.