251216784

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1062

約数の個数: 240

約数和(自身を含む): 911747200

約数和(自身を除く): 660530416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 19, 21, 24, 26, 28, 36, 38, 39, 42, 48, 52, 56, 57, 63, 72, 76, 78, 84, 91, 104, 112, 114, 117, 126, 133, 144, 152, 156, 168, 171, 182, 208, 228, 234, 247, 252, 266, 273, 304, 312, 336, 342, 364, 399, 456, 468, 494, 504, 532, 546, 624, 684, 728, 741, 798, 819, 912, 936, 988, 1008, 1009, 1064, 1092, 1197, 1368, 1456, 1482, 1596, 1638, 1729, 1872, 1976, 2018, 2128, 2184, 2223, 2394, 2736, 2964, 3027, 3192, 3276, 3458, 3952, 4036, 4368, 4446, 4788, 5187, 5928, 6054, 6384, 6552, 6916, 7063, 8072, 8892, 9081, 9576, 10374, 11856, 12108, 13104, 13117, 13832, 14126, 15561, 16144, 17784, 18162, 19152, 19171, 20748, 21189, 24216, 26234, 27664, 28252, 31122, 35568, 36324, 38342, 39351, 41496, 42378, 48432, 52468, 56504, 57513, 62244, 63567, 72648, 76684, 78702, 82992, 84756, 91819, 104936, 113008, 115026, 118053, 124488, 127134, 134197, 145296, 153368, 157404, 169512, 172539, 183638, 209872, 230052, 236106, 248976, 249223, 254268, 268394, 275457, 306736, 314808, 339024, 345078, 367276, 402591, 460104, 472212, 498446, 508536, 536788, 550914, 629616, 690156, 734552, 747669, 805182, 826371, 920208, 944424, 996892, 1017072, 1073576, 1101828, 1207773, 1380312, 1469104, 1495338, 1610364, 1652742, 1744561, 1888848, 1993784, 2147152, 2203656, 2243007, 2415546, 2760624, 2990676, 3220728, 3305484, 3489122, 3987568, 4407312, 4486014, 4831092, 5233683, 5981352, 6441456, 6610968, 6978244, 8972028, 9662184, 10467366, 11962704, 13221936, 13956488, 15701049, 17944056, 19324368, 20934732, 27912976, 31402098, 35888112, 41869464, 62804196, 83738928, 125608392, 251216784]

約数ペア:

[(1, 251216784), (2, 125608392), (3, 83738928), (4, 62804196), (6, 41869464), (7, 35888112), (8, 31402098), (9, 27912976), (12, 20934732), (13, 19324368), (14, 17944056), (16, 15701049), (18, 13956488), (19, 13221936), (21, 11962704), (24, 10467366), (26, 9662184), (28, 8972028), (36, 6978244), (38, 6610968), (39, 6441456), (42, 5981352), (48, 5233683), (52, 4831092), (56, 4486014), (57, 4407312), (63, 3987568), (72, 3489122), (76, 3305484), (78, 3220728), (84, 2990676), (91, 2760624), (104, 2415546), (112, 2243007), (114, 2203656), (117, 2147152), (126, 1993784), (133, 1888848), (144, 1744561), (152, 1652742), (156, 1610364), (168, 1495338), (171, 1469104), (182, 1380312), (208, 1207773), (228, 1101828), (234, 1073576), (247, 1017072), (252, 996892), (266, 944424), (273, 920208), (304, 826371), (312, 805182), (336, 747669), (342, 734552), (364, 690156), (399, 629616), (456, 550914), (468, 536788), (494, 508536), (504, 498446), (532, 472212), (546, 460104), (624, 402591), (684, 367276), (728, 345078), (741, 339024), (798, 314808), (819, 306736), (912, 275457), (936, 268394), (988, 254268), (1008, 249223), (1009, 248976), (1064, 236106), (1092, 230052), (1197, 209872), (1368, 183638), (1456, 172539), (1482, 169512), (1596, 157404), (1638, 153368), (1729, 145296), (1872, 134197), (1976, 127134), (2018, 124488), (2128, 118053), (2184, 115026), (2223, 113008), (2394, 104936), (2736, 91819), (2964, 84756), (3027, 82992), (3192, 78702), (3276, 76684), (3458, 72648), (3952, 63567), (4036, 62244), (4368, 57513), (4446, 56504), (4788, 52468), (5187, 48432), (5928, 42378), (6054, 41496), (6384, 39351), (6552, 38342), (6916, 36324), (7063, 35568), (8072, 31122), (8892, 28252), (9081, 27664), (9576, 26234), (10374, 24216), (11856, 21189), (12108, 20748), (13104, 19171), (13117, 19152), (13832, 18162), (14126, 17784), (15561, 16144)]