257435276

素因数分解:

$2^2\times 7^1\times {\mathrm{419}}^1\times {\mathrm{21943}}^1$

素因数の和:22373

約数の個数: 24

約数和(自身を含む): 516122880

約数和(自身を除く): 258687604

約数列:

[1, 2, 4, 7, 14, 28, 419, 838, 1676, 2933, 5866, 11732, 21943, 43886, 87772, 153601, 307202, 614404, 9194117, 18388234, 36776468, 64358819, 128717638, 257435276]

約数ペア:

[(1, 257435276), (2, 128717638), (4, 64358819), (7, 36776468), (14, 18388234), (28, 9194117), (419, 614404), (838, 307202), (1676, 153601), (2933, 87772), (5866, 43886), (11732, 21943)]