256708494

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{679123}}^1$

素因数の和:679141

約数の個数: 32

約数和(自身を含む): 651959040

約数和(自身を除く): 395250546

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 679123, 1358246, 2037369, 4074738, 4753861, 6112107, 9507722, 12224214, 14261583, 18336321, 28523166, 36672642, 42784749, 85569498, 128354247, 256708494]

約数ペア:

[(1, 256708494), (2, 128354247), (3, 85569498), (6, 42784749), (7, 36672642), (9, 28523166), (14, 18336321), (18, 14261583), (21, 12224214), (27, 9507722), (42, 6112107), (54, 4753861), (63, 4074738), (126, 2037369), (189, 1358246), (378, 679123)]