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 A018365 Divisors of 270. 1
 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This sequence consists of sixteen integers, which add up to 720. We see that 270 * 16 = 4320, and 4320/720 = 6, which is an integer. Therefore 270 is a harmonic divisor number (A001599), only the second one to be abundant (the first is 140). - Alonso del Arte, Sep 30 2017 LINKS MATHEMATICA Divisors[270] (* Alonso del Arte, Sep 30 2017 *) PROG (PARI) divisors(270) \\ Charles R Greathouse IV, Jun 21 2017 CROSSREFS Sequence in context: A018462 A191286 A018659 * A018278 A137809 A219035 Adjacent sequences:  A018362 A018363 A018364 * A018366 A018367 A018368 KEYWORD nonn,fini,full,easy AUTHOR STATUS approved

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Last modified September 17 11:03 EDT 2019. Contains 327129 sequences. (Running on oeis4.)