| 約数 |
1,
2,
4,
5,
8,
10,
16,
20,
40,
71,
80,
101,
142,
202,
284,
317,
355,
404,
505,
568,
634,
710,
808,
1010,
1136,
1268,
1420,
1585,
1616,
2020,
2536,
2840,
3170,
4040,
5072,
5680,
6340,
7171,
8080,
12680,
14342,
22507,
25360,
28684,
32017,
35855,
45014,
57368,
64034,
71710,
90028,
112535,
114736,
128068,
143420,
160085,
180056,
225070,
256136,
286840,
320170,
360112,
450140,
512272,
573680,
640340,
900280,
1280680,
1800560,
2273207,
2561360,
4546414,
9092828,
11366035,
18185656,
22732070,
36371312,
45464140,
90928280,
181856560
|