1287336448

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{313}}^1$

素因数の和:637

約数の個数: 80

約数和(自身を含む): 2678991480

約数和(自身を除く): 1391655032

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 277, 313, 464, 512, 554, 626, 928, 1108, 1252, 1856, 2216, 2504, 3712, 4432, 5008, 7424, 8033, 8864, 9077, 10016, 14848, 16066, 17728, 18154, 20032, 32132, 35456, 36308, 40064, 64264, 70912, 72616, 80128, 86701, 128528, 141824, 145232, 160256, 173402, 257056, 290464, 346804, 514112, 580928, 693608, 1028224, 1161856, 1387216, 2056448, 2323712, 2514329, 2774432, 4112896, 4647424, 5028658, 5548864, 10057316, 11097728, 20114632, 22195456, 40229264, 44390912, 80458528, 160917056, 321834112, 643668224, 1287336448]

約数ペア:

[(1, 1287336448), (2, 643668224), (4, 321834112), (8, 160917056), (16, 80458528), (29, 44390912), (32, 40229264), (58, 22195456), (64, 20114632), (116, 11097728), (128, 10057316), (232, 5548864), (256, 5028658), (277, 4647424), (313, 4112896), (464, 2774432), (512, 2514329), (554, 2323712), (626, 2056448), (928, 1387216), (1108, 1161856), (1252, 1028224), (1856, 693608), (2216, 580928), (2504, 514112), (3712, 346804), (4432, 290464), (5008, 257056), (7424, 173402), (8033, 160256), (8864, 145232), (9077, 141824), (10016, 128528), (14848, 86701), (16066, 80128), (17728, 72616), (18154, 70912), (20032, 64264), (32132, 40064), (35456, 36308)]