1277999744

素因数分解:

$2^7\times 7^1\times {\mathrm{881}}^1\times {\mathrm{1619}}^1$

素因数の和:2521

約数の個数: 64

約数和(自身を含む): 2914833600

約数和(自身を除く): 1636833856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 881, 896, 1619, 1762, 3238, 3524, 6167, 6476, 7048, 11333, 12334, 12952, 14096, 22666, 24668, 25904, 28192, 45332, 49336, 51808, 56384, 90664, 98672, 103616, 112768, 181328, 197344, 207232, 362656, 394688, 725312, 789376, 1426339, 1450624, 2852678, 5705356, 9984373, 11410712, 19968746, 22821424, 39937492, 45642848, 79874984, 91285696, 159749968, 182571392, 319499936, 638999872, 1277999744]

約数ペア:

[(1, 1277999744), (2, 638999872), (4, 319499936), (7, 182571392), (8, 159749968), (14, 91285696), (16, 79874984), (28, 45642848), (32, 39937492), (56, 22821424), (64, 19968746), (112, 11410712), (128, 9984373), (224, 5705356), (448, 2852678), (881, 1450624), (896, 1426339), (1619, 789376), (1762, 725312), (3238, 394688), (3524, 362656), (6167, 207232), (6476, 197344), (7048, 181328), (11333, 112768), (12334, 103616), (12952, 98672), (14096, 90664), (22666, 56384), (24668, 51808), (25904, 49336), (28192, 45332)]