The total number of divisors of that are of the form

MATHEMATICS · Single correct · CBSE · Mathematics · Real Numbers · Real Numbers

Problem

The total number of divisors of N=35⋅57⋅79N=3^5\cdot5^7\cdot7^9 that are of the form 4k+14k+1, where k≥0k\ge0, is equal to (1) 15 (2) 30 (3) 120 (4) 240

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