Robinson (20 points, 10 rebounds), Burke (19, 12 assists) and Hardaway (19, five rebounds, five assists) powered the Wolverines in the victory.
Undefeated Michigan improved to 15-0 and 2-0 in the Big Ten on the season, racking up its eighth consecutive double-digit triumph.
The Hawkeyes (11-4, 0-2) were led by Roy Devyn Marble with 14 points.
Anthony Clemmons donated 12 and seven helpers in the loss.
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