68409328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{328891}}^1$

素因数の和:328912

約数の個数: 20

約数和(自身を含む): 142739128

約数和(自身を除く): 74329800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 328891, 657782, 1315564, 2631128, 4275583, 5262256, 8551166, 17102332, 34204664, 68409328]

約数ペア:

[(1, 68409328), (2, 34204664), (4, 17102332), (8, 8551166), (13, 5262256), (16, 4275583), (26, 2631128), (52, 1315564), (104, 657782), (208, 328891)]