647996978

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{11731}}^1$

素因数の和:12193

約数の個数: 16

約数和(自身を含む): 988303680

約数和(自身を除く): 340306702

約数列:

[1, 2, 71, 142, 389, 778, 11731, 23462, 27619, 55238, 832901, 1665802, 4563359, 9126718, 323998489, 647996978]

約数ペア:

[(1, 647996978), (2, 323998489), (71, 9126718), (142, 4563359), (389, 1665802), (778, 832901), (11731, 55238), (23462, 27619)]