208078493

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 255467520

約数和(自身を除く): 47389027

約数列:

[1, 7, 23, 71, 109, 161, 167, 497, 763, 1169, 1633, 2507, 3841, 7739, 11431, 11857, 17549, 18203, 26887, 54173, 82999, 127421, 177997, 272711, 418669, 1245979, 1292413, 1908977, 2930683, 9046891, 29725499, 208078493]

約数ペア:

[(1, 208078493), (7, 29725499), (23, 9046891), (71, 2930683), (109, 1908977), (161, 1292413), (167, 1245979), (497, 418669), (763, 272711), (1169, 177997), (1633, 127421), (2507, 82999), (3841, 54173), (7739, 26887), (11431, 18203), (11857, 17549)]