278841472

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 128

約数和(自身を含む): 703261440

約数和(自身を除く): 424419968

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 37, 52, 56, 64, 74, 91, 104, 112, 128, 148, 182, 208, 224, 259, 296, 364, 416, 448, 481, 518, 592, 647, 728, 832, 896, 962, 1036, 1184, 1294, 1456, 1664, 1924, 2072, 2368, 2588, 2912, 3367, 3848, 4144, 4529, 4736, 5176, 5824, 6734, 7696, 8288, 8411, 9058, 10352, 11648, 13468, 15392, 16576, 16822, 18116, 20704, 23939, 26936, 30784, 33152, 33644, 36232, 41408, 47878, 53872, 58877, 61568, 67288, 72464, 82816, 95756, 107744, 117754, 134576, 144928, 167573, 191512, 215488, 235508, 269152, 289856, 311207, 335146, 383024, 430976, 471016, 538304, 579712, 622414, 670292, 766048, 942032, 1076608, 1244828, 1340584, 1532096, 1884064, 2178449, 2489656, 2681168, 3064192, 3768128, 4356898, 4979312, 5362336, 7536256, 8713796, 9958624, 10724672, 17427592, 19917248, 21449344, 34855184, 39834496, 69710368, 139420736, 278841472]

約数ペア:

[(1, 278841472), (2, 139420736), (4, 69710368), (7, 39834496), (8, 34855184), (13, 21449344), (14, 19917248), (16, 17427592), (26, 10724672), (28, 9958624), (32, 8713796), (37, 7536256), (52, 5362336), (56, 4979312), (64, 4356898), (74, 3768128), (91, 3064192), (104, 2681168), (112, 2489656), (128, 2178449), (148, 1884064), (182, 1532096), (208, 1340584), (224, 1244828), (259, 1076608), (296, 942032), (364, 766048), (416, 670292), (448, 622414), (481, 579712), (518, 538304), (592, 471016), (647, 430976), (728, 383024), (832, 335146), (896, 311207), (962, 289856), (1036, 269152), (1184, 235508), (1294, 215488), (1456, 191512), (1664, 167573), (1924, 144928), (2072, 134576), (2368, 117754), (2588, 107744), (2912, 95756), (3367, 82816), (3848, 72464), (4144, 67288), (4529, 61568), (4736, 58877), (5176, 53872), (5824, 47878), (6734, 41408), (7696, 36232), (8288, 33644), (8411, 33152), (9058, 30784), (10352, 26936), (11648, 23939), (13468, 20704), (15392, 18116), (16576, 16822)]