278643872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 662124456

約数和(自身を除く): 383480584

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 32, 34, 41, 52, 62, 68, 82, 104, 124, 136, 164, 208, 221, 248, 272, 328, 403, 416, 442, 496, 527, 533, 544, 656, 697, 806, 884, 961, 992, 1054, 1066, 1271, 1312, 1394, 1612, 1768, 1922, 2108, 2132, 2542, 2788, 3224, 3536, 3844, 4216, 4264, 5084, 5576, 6448, 6851, 7072, 7688, 8432, 8528, 9061, 10168, 11152, 12493, 12896, 13702, 15376, 16337, 16523, 16864, 17056, 18122, 20336, 21607, 22304, 24986, 27404, 30752, 32674, 33046, 36244, 39401, 40672, 43214, 49972, 54808, 65348, 66092, 72488, 78802, 86428, 99944, 109616, 130696, 132184, 144976, 157604, 172856, 199888, 212381, 219232, 261392, 264368, 280891, 289952, 315208, 345712, 399776, 424762, 512213, 522784, 528736, 561782, 630416, 669817, 691424, 849524, 1024426, 1123564, 1260832, 1339634, 1699048, 2048852, 2247128, 2679268, 3398096, 4097704, 4494256, 5358536, 6796192, 8195408, 8707621, 8988512, 10717072, 16390816, 17415242, 21434144, 34830484, 69660968, 139321936, 278643872]

約数ペア:

[(1, 278643872), (2, 139321936), (4, 69660968), (8, 34830484), (13, 21434144), (16, 17415242), (17, 16390816), (26, 10717072), (31, 8988512), (32, 8707621), (34, 8195408), (41, 6796192), (52, 5358536), (62, 4494256), (68, 4097704), (82, 3398096), (104, 2679268), (124, 2247128), (136, 2048852), (164, 1699048), (208, 1339634), (221, 1260832), (248, 1123564), (272, 1024426), (328, 849524), (403, 691424), (416, 669817), (442, 630416), (496, 561782), (527, 528736), (533, 522784), (544, 512213), (656, 424762), (697, 399776), (806, 345712), (884, 315208), (961, 289952), (992, 280891), (1054, 264368), (1066, 261392), (1271, 219232), (1312, 212381), (1394, 199888), (1612, 172856), (1768, 157604), (1922, 144976), (2108, 132184), (2132, 130696), (2542, 109616), (2788, 99944), (3224, 86428), (3536, 78802), (3844, 72488), (4216, 66092), (4264, 65348), (5084, 54808), (5576, 49972), (6448, 43214), (6851, 40672), (7072, 39401), (7688, 36244), (8432, 33046), (8528, 32674), (9061, 30752), (10168, 27404), (11152, 24986), (12493, 22304), (12896, 21607), (13702, 20336), (15376, 18122), (16337, 17056), (16523, 16864)]