256971344

素因数分解:

$2^4\times 7^1\times {\mathrm{2294387}}^1$

素因数の和:2294402

約数の個数: 20

約数和(自身を含む): 569008224

約数和(自身を除く): 312036880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2294387, 4588774, 9177548, 16060709, 18355096, 32121418, 36710192, 64242836, 128485672, 256971344]

約数ペア:

[(1, 256971344), (2, 128485672), (4, 64242836), (7, 36710192), (8, 32121418), (14, 18355096), (16, 16060709), (28, 9177548), (56, 4588774), (112, 2294387)]