78689564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{4643}}^1$

素因数の和:4889

約数の個数: 24

約数和(自身を含む): 145635840

約数和(自身を除く): 66946276

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 4237, 4643, 8474, 9286, 16948, 18572, 88217, 176434, 352868, 1035389, 2070778, 4141556, 19672391, 39344782, 78689564]

約数ペア:

[(1, 78689564), (2, 39344782), (4, 19672391), (19, 4141556), (38, 2070778), (76, 1035389), (223, 352868), (446, 176434), (892, 88217), (4237, 18572), (4643, 16948), (8474, 9286)]