Apart from that, in Google most (core) jobs are software related, in Apple not so much (there's hardware, design, logistics, manufacturing specialists - even if the bulk is @ Foxconn and similar contractors).
Even if we consider software jobs only, I believe the bulk @ Apple is working in OSX/iOS, not to mention iWork, Final Cut, etc and not directly in Cloud infrastructure.
Not that it matters a whole lot, but, as the website says that's just the US number.
The total number of employees in retail according to Apple's last 10-K filing in October 2012
( http://files.shareholder.com/downloads/AAPL/2393147114x0xS11... )
was 42,400.
" Employees As of September 29, 2012, the Company had approximately 72,800 full-time equivalent employees and an additional 3,300 full-time equivalent temporary employees and contractors. Approximately 42,400 of the total full-time equivalent employees worked in the Company’s Retail segment. "
It's true that Apple is highly focused, and they probably have half, if not a quarter of the products that Google has.