| 約数 |
1,
2,
3,
4,
5,
6,
7,
9,
10,
12,
14,
15,
18,
19,
20,
21,
28,
30,
35,
36,
38,
42,
45,
49,
57,
60,
63,
70,
76,
84,
90,
95,
98,
105,
114,
126,
133,
140,
147,
171,
180,
190,
196,
210,
228,
245,
252,
266,
285,
294,
315,
342,
380,
399,
420,
441,
490,
532,
570,
588,
630,
665,
684,
735,
798,
855,
882,
931,
980,
1140,
1197,
1260,
1330,
1470,
1596,
1710,
1764,
1862,
1995,
2205,
2394,
2660,
2793,
2940,
3420,
3659,
3724,
3990,
4410,
4655,
4788,
5586,
5985,
7318,
7980,
8379,
8820,
9310,
10977,
11172,
11970,
13965,
14636,
16758,
18295,
18620,
21954,
23940,
25613,
27930,
32931,
33516,
36590,
41895,
43908,
51226,
54885,
55860,
65862,
69521,
73180,
76839,
83790,
102452,
109770,
128065,
131724,
139042,
153678,
164655,
167580,
179291,
208563,
219540,
230517,
256130,
278084,
307356,
329310,
347605,
358582,
384195,
417126,
461034,
486647,
512260,
537873,
625689,
658620,
695210,
717164,
768390,
834252,
896455,
922068,
973294,
1042815,
1075746,
1152585,
1251378,
1390420,
1459941,
1536780,
1613619,
1792910,
1946588,
2085630,
2151492,
2305170,
2433235,
2502756,
2689365,
2919882,
3128445,
3227238,
3406529,
3585820,
4171260,
4379823,
4610340,
4866470,
5378730,
5839764,
6256890,
6454476,
6813058,
7299705,
8068095,
8759646,
9732940,
10219587,
10757460,
12513780,
13626116,
14599410,
16136190,
17032645,
17519292,
20439174,
21899115,
29198820,
30658761,
32272380,
34065290,
40878348,
43798230,
51097935,
61317522,
68130580,
87596460,
102195870,
122635044,
153293805,
204391740,
306587610,
613175220
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