Problem 191. Proper Factors

1

Claudio Gelmi

6Solutions
20Size
2

@bmtran

1Solution
22Size
3

Martijn

12Solutions
22Size
4

Mark

2Solutions
23Size
5

Alfonso Nieto-Castanon

2Solutions
26Size
6

Prateep Mukherjee

2Solutions
31Size
7

Yaroslav

2Solutions
32Size
8

Binbin Qi

2Solutions
34Size
9

Th B

3Solutions
34Size
10

Richard Zapor

3Solutions
34Size
11

Yuval Cohen

4Solutions
35Size
12

Amitava Biswas

3Solutions
35Size
13

José Ramón Menzinger

3Solutions
35Size
14

Peter Wittenberg

4Solutions
35Size
15

Tomasz

2Solutions
36Size
16

Tanguy

2Solutions
36Size
17

Venu Lolla

2Solutions
37Size
18

Christopher

3Solutions
37Size
19

Jean-Marie SAINTHILLIER

1Solution
38Size
20

S L

2Solutions
39Size
21

Khaled Hamed

3Solutions
39Size
22

Freddy

3Solutions
40Size
23

James

2Solutions
41Size
24

Bart Vandewoestyne

6Solutions
43Size
25

andrea84

1Solution
43Size
26

Hardajit

4Solutions
46Size
27

Aurelien Queffurust

4Solutions
50Size
28

parvez mh

3Solutions
58Size
29

Ben Petschel

2Solutions
62Size
30

Mehmet

2Solutions
77Size