256560304

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:315

約数の個数: 160

約数和(自身を含む): 678956544

約数和(自身を除く): 422396240

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 83, 88, 91, 104, 112, 143, 154, 166, 176, 182, 193, 208, 286, 308, 332, 364, 386, 572, 581, 616, 664, 728, 772, 913, 1001, 1079, 1144, 1162, 1232, 1328, 1351, 1456, 1544, 1826, 2002, 2123, 2158, 2288, 2324, 2509, 2702, 3088, 3652, 4004, 4246, 4316, 4648, 5018, 5404, 6391, 7304, 7553, 8008, 8492, 8632, 9296, 10036, 10808, 11869, 12782, 14608, 14861, 15106, 16016, 16019, 16984, 17264, 17563, 20072, 21616, 23738, 25564, 27599, 29722, 30212, 32038, 33968, 35126, 40144, 47476, 51128, 55198, 59444, 60424, 64076, 70252, 83083, 94952, 102256, 110396, 112133, 118888, 120848, 128152, 140504, 166166, 176209, 189904, 193193, 208247, 220792, 224266, 237776, 256304, 281008, 332332, 352418, 386386, 416494, 441584, 448532, 664664, 704836, 772772, 832988, 897064, 1233463, 1329328, 1409672, 1457729, 1545544, 1665976, 1794128, 2290717, 2466926, 2819344, 2915458, 3091088, 3331952, 4581434, 4933852, 5830916, 9162868, 9867704, 11661832, 16035019, 18325736, 19735408, 23323664, 32070038, 36651472, 64140076, 128280152, 256560304]

約数ペア:

[(1, 256560304), (2, 128280152), (4, 64140076), (7, 36651472), (8, 32070038), (11, 23323664), (13, 19735408), (14, 18325736), (16, 16035019), (22, 11661832), (26, 9867704), (28, 9162868), (44, 5830916), (52, 4933852), (56, 4581434), (77, 3331952), (83, 3091088), (88, 2915458), (91, 2819344), (104, 2466926), (112, 2290717), (143, 1794128), (154, 1665976), (166, 1545544), (176, 1457729), (182, 1409672), (193, 1329328), (208, 1233463), (286, 897064), (308, 832988), (332, 772772), (364, 704836), (386, 664664), (572, 448532), (581, 441584), (616, 416494), (664, 386386), (728, 352418), (772, 332332), (913, 281008), (1001, 256304), (1079, 237776), (1144, 224266), (1162, 220792), (1232, 208247), (1328, 193193), (1351, 189904), (1456, 176209), (1544, 166166), (1826, 140504), (2002, 128152), (2123, 120848), (2158, 118888), (2288, 112133), (2324, 110396), (2509, 102256), (2702, 94952), (3088, 83083), (3652, 70252), (4004, 64076), (4246, 60424), (4316, 59444), (4648, 55198), (5018, 51128), (5404, 47476), (6391, 40144), (7304, 35126), (7553, 33968), (8008, 32038), (8492, 30212), (8632, 29722), (9296, 27599), (10036, 25564), (10808, 23738), (11869, 21616), (12782, 20072), (14608, 17563), (14861, 17264), (15106, 16984), (16016, 16019)]