A018365 Divisors of 270.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270

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

Table of n, a(n) for n=1..16.

Index entries for sequences related to divisors of numbers

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

N. J. A. Sloane

Status

approved