Maths-
General
Easy
Question
Sum of all divisors of 5400 whose unit digit is 0, is -
- 5400
- 10800
- 16800
- 14400
The correct answer is: 16800
5400 = 23 × 33 × 52
Sum = (2 + 22 + 23) (30 + 31 + 32 + 33) (5 + 52)= 16800
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