257957168

素因数分解:

$2^4\times 7^2\times {\mathrm{329027}}^1$

素因数の和:329049

約数の個数: 30

約数和(自身を含む): 581392476

約数和(自身を除く): 323435308

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 329027, 658054, 1316108, 2303189, 2632216, 4606378, 5264432, 9212756, 16122323, 18425512, 32244646, 36851024, 64489292, 128978584, 257957168]

約数ペア:

[(1, 257957168), (2, 128978584), (4, 64489292), (7, 36851024), (8, 32244646), (14, 18425512), (16, 16122323), (28, 9212756), (49, 5264432), (56, 4606378), (98, 2632216), (112, 2303189), (196, 1316108), (392, 658054), (784, 329027)]