261280656

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 240

約数和(自身を含む): 912830464

約数和(自身を除く): 651549808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 104, 112, 117, 126, 127, 144, 156, 157, 168, 182, 208, 234, 252, 254, 273, 312, 314, 336, 364, 381, 468, 471, 504, 508, 546, 624, 628, 728, 762, 819, 889, 936, 942, 1008, 1016, 1092, 1099, 1143, 1256, 1413, 1456, 1524, 1638, 1651, 1778, 1872, 1884, 2032, 2041, 2184, 2198, 2286, 2512, 2667, 2826, 3048, 3276, 3297, 3302, 3556, 3768, 4082, 4368, 4396, 4572, 4953, 5334, 5652, 6096, 6123, 6552, 6594, 6604, 7112, 7536, 8001, 8164, 8792, 9144, 9891, 9906, 10668, 11304, 11557, 12246, 13104, 13188, 13208, 14224, 14287, 14859, 16002, 16328, 17584, 18288, 18369, 19782, 19812, 19939, 21336, 22608, 23114, 24492, 26376, 26416, 28574, 29718, 32004, 32656, 34671, 36738, 39564, 39624, 39878, 42672, 42861, 46228, 48984, 52752, 57148, 59436, 59817, 64008, 69342, 73476, 79128, 79248, 79756, 85722, 92456, 97968, 104013, 114296, 118872, 119634, 128016, 128583, 138684, 139573, 146952, 158256, 159512, 171444, 179451, 184912, 208026, 228592, 237744, 239268, 257166, 259207, 277368, 279146, 293904, 319024, 342888, 358902, 416052, 418719, 478536, 514332, 518414, 554736, 558292, 685776, 717804, 777621, 832104, 837438, 957072, 1028664, 1036828, 1116584, 1256157, 1435608, 1555242, 1664208, 1674876, 1814449, 2057328, 2073656, 2233168, 2332863, 2512314, 2871216, 3110484, 3349752, 3628898, 4147312, 4665726, 5024628, 5443347, 6220968, 6699504, 7257796, 9331452, 10049256, 10886694, 12441936, 14515592, 16330041, 18662904, 20098512, 21773388, 29031184, 32660082, 37325808, 43546776, 65320164, 87093552, 130640328, 261280656]

約数ペア:

[(1, 261280656), (2, 130640328), (3, 87093552), (4, 65320164), (6, 43546776), (7, 37325808), (8, 32660082), (9, 29031184), (12, 21773388), (13, 20098512), (14, 18662904), (16, 16330041), (18, 14515592), (21, 12441936), (24, 10886694), (26, 10049256), (28, 9331452), (36, 7257796), (39, 6699504), (42, 6220968), (48, 5443347), (52, 5024628), (56, 4665726), (63, 4147312), (72, 3628898), (78, 3349752), (84, 3110484), (91, 2871216), (104, 2512314), (112, 2332863), (117, 2233168), (126, 2073656), (127, 2057328), (144, 1814449), (156, 1674876), (157, 1664208), (168, 1555242), (182, 1435608), (208, 1256157), (234, 1116584), (252, 1036828), (254, 1028664), (273, 957072), (312, 837438), (314, 832104), (336, 777621), (364, 717804), (381, 685776), (468, 558292), (471, 554736), (504, 518414), (508, 514332), (546, 478536), (624, 418719), (628, 416052), (728, 358902), (762, 342888), (819, 319024), (889, 293904), (936, 279146), (942, 277368), (1008, 259207), (1016, 257166), (1092, 239268), (1099, 237744), (1143, 228592), (1256, 208026), (1413, 184912), (1456, 179451), (1524, 171444), (1638, 159512), (1651, 158256), (1778, 146952), (1872, 139573), (1884, 138684), (2032, 128583), (2041, 128016), (2184, 119634), (2198, 118872), (2286, 114296), (2512, 104013), (2667, 97968), (2826, 92456), (3048, 85722), (3276, 79756), (3297, 79248), (3302, 79128), (3556, 73476), (3768, 69342), (4082, 64008), (4368, 59817), (4396, 59436), (4572, 57148), (4953, 52752), (5334, 48984), (5652, 46228), (6096, 42861), (6123, 42672), (6552, 39878), (6594, 39624), (6604, 39564), (7112, 36738), (7536, 34671), (8001, 32656), (8164, 32004), (8792, 29718), (9144, 28574), (9891, 26416), (9906, 26376), (10668, 24492), (11304, 23114), (11557, 22608), (12246, 21336), (13104, 19939), (13188, 19812), (13208, 19782), (14224, 18369), (14287, 18288), (14859, 17584), (16002, 16328)]