The Hawkeyes (3-1) now enter Big Ten play with a three-game winning streak, their longest since 2010.
Martin-Manley scored on returns of 83 and 63 yards early in the second quarter as Iowa jumped out to a 38-3 halftime lead.
Lowery took back picks for 35 and 13-yard TDs for Iowa, which scored its most points since it had 62 against Northwestern in 2002.
Tyler Van Tubbergen had 114 yards passing for the Broncos (0-4).
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Three more women have joined a federal Title IX lawsuit filed earlier this month against Baylor claiming the school was indifferent to or ignored claims of sexual assault.
If Arizona can stay healthy on defense, they have a good chance at success based on the trio of Sani Fuimaono, Paul Magloire Jr. and DaVonte' Neal.
Answering Big 12 questions about expansion, Oklahoma State's Jordan Sterns and more.
Duke's program has turned a corner under coach David Cutcliffe, and will be trying to create early momentum when it travels to Northwestern.
Kentucky faces a tough stretch in the middle of the season, but a six-win season and bowl berth are reachable goals.
The Ducks' quarterback battle betweek Dakota Prukop and Travis Jonsen is intriguing, but whoever gets the nod can lean on these two skill players.