A018433 -id:A018433

Search: a018433 -id:a018433

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A018257

Divisors of 40.

+10
0

1, 2, 4, 5, 8, 10, 20, 40

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

There are four ways to partition 40 into its divisors (see A033630): 1 + 2 + 4 + 5 + 8 + 20 = 1 + 4 + 5 + 10 + 20 = 2 + 8 + 10 + 20 = 40. - Alonso del Arte, Oct 04 2017

LINKS

Table of n, a(n) for n=1..8.

Index entries for sequences related to divisors of numbers

MATHEMATICA

Divisors[40] (* Alonso del Arte, Oct 04 2017 *)

PROG

(PARI) divisors(40) \\ Charles R Greathouse IV, Jun 22 2017

CROSSREFS

Cf. A018433.

This sequence is row n = 40 of the triangle A027750. - Felix Fröhlich, Oct 04 2017

KEYWORD

nonn,fini,full,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

A133020

Divisors of 10000.

+10
0

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..25.

Index entries for sequences related to divisors of numbers

MATHEMATICA

Divisors[10^4] (* Paolo Xausa, Jul 02 2024 *)

PROG

(PARI) divisors(10^4) \\ Charles R Greathouse IV, Sep 06 2016

CROSSREFS

Cf. A018283, A018433, A018653, A018767.

KEYWORD

fini,full,nonn

AUTHOR

Omar E. Pol, Oct 27 2007

STATUS

approved

A133075

Divisors of 2000.

+10
0

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..20.

Index entries for sequences related to divisors of numbers.

EXAMPLE

40*50 = 2000.

MATHEMATICA

Divisors[2000] (* Paolo Xausa, Aug 19 2024 *)

PROG

(PARI) divisors(2000) \\ Charles R Greathouse IV, Sep 06 2016

CROSSREFS

Cf. A003592, A018433, A018653, A018767.

KEYWORD

fini,full,nonn,easy

AUTHOR

Omar E. Pol, Oct 28 2007

STATUS

approved

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