How to recover my files from memo and mobilse note after format factory?
I think you cannot get your data back...if you haven't created any backup. 
But For now you should download some apps and create backup for future use.. All these apps are available on Google Play.
1. Avasti  Mobile Security 
2. Helium - App Sync and Backup
3. Ultimate Backup
4. Super Backup : SMS &amp; Contacts