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B
60
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C
72
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D
None of These
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Solution
The correct option is B 60 10800=3×3×3×2×2×2×2×5×5 10800=33×24×52 n=ap,bq,cr Than the number of divisors n=(p+1)×(q+1)×(r+1) Heren=10800,a=3,b=2,c=5,p=3,q=4,c=2 ⇒n=(3+1)×(4+1)×(2+1) ⇒n=4×5×3=60