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Distribution of Primes 7 The DivisorSum Function sigman
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Video Source: www.youtube.com/watch?v=wV7XLSRurPw
In this video, we introduce the divisor-sum function, sigma(n), which sums the divisors of n. In the next video we'll use (and eventually prove) a formula that expresses sigma(n) in terms of the prime factors of n. • This function is also sometimes denoted sigma_1(n), with the divisor counting function sigma_0(n). • SUPPORT ME ON PATREON! Click here: / crystalmath • Like us on Facebook: / learnmathsfree • Follow us on Twitter: / learnmathsfree • Google+: https://plus.google.com/u/0/b/1170336... • Video URL: • Distribution of Primes #7: The Diviso... • Channel URL: / @learnmathsfree
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