Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.

9 : 734 7 : 348 5 : 130 8 : 516

8 : 516

The logic followed here is: 9 : 734 = 93 +5 = 734 7 : 348 = 73 +5 = 348 5 : 130 = 53 +5 = 130 8 : 516 = 83 + 5 = 517 ≠ 516