256348526

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{131731}}^1$

素因数の和:131879

約数の個数: 16

約数和(自身を含む): 442619520

約数和(自身を除く): 186270994

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 131731, 263462, 922117, 1844234, 18310609, 36621218, 128174263, 256348526]

約数ペア:

[(1, 256348526), (2, 128174263), (7, 36621218), (14, 18310609), (139, 1844234), (278, 922117), (973, 263462), (1946, 131731)]