256890626

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{19661}}^1$

素因数の和:19849

約数の個数: 16

約数和(自身を含む): 396385920

約数和(自身を除く): 139495294

約数列:

[1, 2, 47, 94, 139, 278, 6533, 13066, 19661, 39322, 924067, 1848134, 2732879, 5465758, 128445313, 256890626]

約数ペア:

[(1, 256890626), (2, 128445313), (47, 5465758), (94, 2732879), (139, 1848134), (278, 924067), (6533, 39322), (13066, 19661)]