I was able to download it to at least 2 computers and one laptop... But that was years ago, odds are though if you got the game before Origin said that they would stop supporting it... They have officially stopped supporting it a few months ago
You might be able to get physical copies of of the games online and there is this one website that put a link to a website where you can download the game from them for free (not legal but neither is downloading sims store items on MATY) however I forgot the website name tumblr has a large sims 2 community you can likely find the link to the website there.
Good luck.