256648168

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199261}}^1$

素因数の和:199297

約数の個数: 32

約数和(自身を含む): 573874560

約数和(自身を除く): 317226392

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 199261, 398522, 797044, 1394827, 1594088, 2789654, 4583003, 5579308, 9166006, 11158616, 18332012, 32081021, 36664024, 64162042, 128324084, 256648168]

約数ペア:

[(1, 256648168), (2, 128324084), (4, 64162042), (7, 36664024), (8, 32081021), (14, 18332012), (23, 11158616), (28, 9166006), (46, 5579308), (56, 4583003), (92, 2789654), (161, 1594088), (184, 1394827), (322, 797044), (644, 398522), (1288, 199261)]