256708144

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{208367}}^1$

素因数の和:208393

約数の個数: 40

約数和(自身を含む): 620103168

約数和(自身を除く): 363395024

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 208367, 416734, 833468, 1458569, 1666936, 2292037, 2917138, 3333872, 4584074, 5834276, 9168148, 11668552, 16044259, 18336296, 23337104, 32088518, 36672592, 64177036, 128354072, 256708144]

約数ペア:

[(1, 256708144), (2, 128354072), (4, 64177036), (7, 36672592), (8, 32088518), (11, 23337104), (14, 18336296), (16, 16044259), (22, 11668552), (28, 9168148), (44, 5834276), (56, 4584074), (77, 3333872), (88, 2917138), (112, 2292037), (154, 1666936), (176, 1458569), (308, 833468), (616, 416734), (1232, 208367)]