256516416

素因数分解:

$2^6\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:654

約数の個数: 224

約数和(自身を含む): 856284800

約数和(自身を除く): 599768384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 32, 36, 38, 39, 48, 52, 54, 57, 64, 72, 76, 78, 96, 104, 108, 114, 117, 144, 152, 156, 171, 192, 208, 216, 228, 234, 247, 288, 304, 312, 342, 351, 416, 432, 456, 468, 494, 513, 576, 601, 608, 624, 684, 702, 741, 832, 864, 912, 936, 988, 1026, 1202, 1216, 1248, 1368, 1404, 1482, 1728, 1803, 1824, 1872, 1976, 2052, 2223, 2404, 2496, 2736, 2808, 2964, 3606, 3648, 3744, 3952, 4104, 4446, 4808, 5409, 5472, 5616, 5928, 6669, 7212, 7488, 7813, 7904, 8208, 8892, 9616, 10818, 10944, 11232, 11419, 11856, 13338, 14424, 15626, 15808, 16227, 16416, 17784, 19232, 21636, 22464, 22838, 23439, 23712, 26676, 28848, 31252, 32454, 32832, 34257, 35568, 38464, 43272, 45676, 46878, 47424, 53352, 57696, 62504, 64908, 68514, 70317, 71136, 86544, 91352, 93756, 102771, 106704, 115392, 125008, 129816, 137028, 140634, 142272, 148447, 173088, 182704, 187512, 205542, 210951, 213408, 250016, 259632, 274056, 281268, 296894, 308313, 346176, 365408, 375024, 411084, 421902, 426816, 445341, 500032, 519264, 548112, 562536, 593788, 616626, 730816, 750048, 822168, 843804, 890682, 1038528, 1096224, 1125072, 1187576, 1233252, 1336023, 1500096, 1644336, 1687608, 1781364, 2192448, 2250144, 2375152, 2466504, 2672046, 3288672, 3375216, 3562728, 4008069, 4500288, 4750304, 4933008, 5344092, 6577344, 6750432, 7125456, 8016138, 9500608, 9866016, 10688184, 13500864, 14250912, 16032276, 19732032, 21376368, 28501824, 32064552, 42752736, 64129104, 85505472, 128258208, 256516416]

約数ペア:

[(1, 256516416), (2, 128258208), (3, 85505472), (4, 64129104), (6, 42752736), (8, 32064552), (9, 28501824), (12, 21376368), (13, 19732032), (16, 16032276), (18, 14250912), (19, 13500864), (24, 10688184), (26, 9866016), (27, 9500608), (32, 8016138), (36, 7125456), (38, 6750432), (39, 6577344), (48, 5344092), (52, 4933008), (54, 4750304), (57, 4500288), (64, 4008069), (72, 3562728), (76, 3375216), (78, 3288672), (96, 2672046), (104, 2466504), (108, 2375152), (114, 2250144), (117, 2192448), (144, 1781364), (152, 1687608), (156, 1644336), (171, 1500096), (192, 1336023), (208, 1233252), (216, 1187576), (228, 1125072), (234, 1096224), (247, 1038528), (288, 890682), (304, 843804), (312, 822168), (342, 750048), (351, 730816), (416, 616626), (432, 593788), (456, 562536), (468, 548112), (494, 519264), (513, 500032), (576, 445341), (601, 426816), (608, 421902), (624, 411084), (684, 375024), (702, 365408), (741, 346176), (832, 308313), (864, 296894), (912, 281268), (936, 274056), (988, 259632), (1026, 250016), (1202, 213408), (1216, 210951), (1248, 205542), (1368, 187512), (1404, 182704), (1482, 173088), (1728, 148447), (1803, 142272), (1824, 140634), (1872, 137028), (1976, 129816), (2052, 125008), (2223, 115392), (2404, 106704), (2496, 102771), (2736, 93756), (2808, 91352), (2964, 86544), (3606, 71136), (3648, 70317), (3744, 68514), (3952, 64908), (4104, 62504), (4446, 57696), (4808, 53352), (5409, 47424), (5472, 46878), (5616, 45676), (5928, 43272), (6669, 38464), (7212, 35568), (7488, 34257), (7813, 32832), (7904, 32454), (8208, 31252), (8892, 28848), (9616, 26676), (10818, 23712), (10944, 23439), (11232, 22838), (11419, 22464), (11856, 21636), (13338, 19232), (14424, 17784), (15626, 16416), (15808, 16227)]