261201208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{1718429}}^1$

素因数の和:1718454

約数の個数: 16

約数和(自身を含む): 515529000

約数和(自身を除く): 254327792

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 1718429, 3436858, 6873716, 13747432, 32650151, 65300302, 130600604, 261201208]

約数ペア:

[(1, 261201208), (2, 130600604), (4, 65300302), (8, 32650151), (19, 13747432), (38, 6873716), (76, 3436858), (152, 1718429)]