The demand was delivered to the three-judge panel at the Seoul Central District Court in Lee's trial that began in early May. Prosecutors also called for a 15 billion-won (US$13.4 million) fine and a forfeiture of 11.1 billion won for the disgraced ex-leader.
The court's ruling is scheduled for Oct. 5.
Lee, president from 2008-2013, was indicted in April on 16 counts of corruption ranging from bribery, abuse of power and embezzlement to other irregularities. He has been under presentencing detention since his arrest in late March.
Lee's charges center on long-held suspicions, which dogged him throughout most of his political career, that he is the real owner of an auto parts company named DAS and used his presidential powers to benefit the company as well as himself and his family.
Part of the bribes also includes $5.85 million in lawsuit expenses Samsung Electronics Co. allegedly paid on behalf of DAS.
The 76-year-old is the fourth former president to face a criminal trial after ex-Presidents Chun Doo-hwan, Roh Tae-woo and Park Geun-hye. Park is serving a 25-year jail term for corruption, pending a top court decision.
