640053874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{65539}}^1$

素因数の和:65817

約数の個数: 16

約数和(自身を含む): 1014559200

約数和(自身を除く): 374505326

約数列:

[1, 2, 19, 38, 257, 514, 4883, 9766, 65539, 131078, 1245241, 2490482, 16843523, 33687046, 320026937, 640053874]

約数ペア:

[(1, 640053874), (2, 320026937), (19, 33687046), (38, 16843523), (257, 2490482), (514, 1245241), (4883, 131078), (9766, 65539)]