According to Yeah!! J-Pop!
http://www.j-pop.ne.jp/flash/index.php?id=f1222_1
The first week sales:
The 1st place- Memorial address(CD+DVD) sold 382,600 copies
The 5th place- Memorial address(CD) sold approx. 90,000 copies
Ayu's made it close to half a mil (total sales) in the first week.
Everyone, keep buying! (JPN Ver. in particular)