A018365 Divisors of 270.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• easy

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

• Index entries for sequences related to divisors of numbers

Programs

Mathematica

Divisors[270] (* Alonso del Arte, Sep 30 2017 *)

PARI

divisors(270) \\ Charles R Greathouse IV, Jun 21 2017