256721864

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{36097}}^1$

素因数の和:36237

約数の個数: 32

約数和(自身を含む): 554465280

約数和(自身を除く): 297743416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 3556, 7112, 36097, 72194, 144388, 252679, 288776, 505358, 1010716, 2021432, 4584319, 9168638, 18337276, 32090233, 36674552, 64180466, 128360932, 256721864]

約数ペア:

[(1, 256721864), (2, 128360932), (4, 64180466), (7, 36674552), (8, 32090233), (14, 18337276), (28, 9168638), (56, 4584319), (127, 2021432), (254, 1010716), (508, 505358), (889, 288776), (1016, 252679), (1778, 144388), (3556, 72194), (7112, 36097)]