261936656

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{25303}}^1$

素因数の和:25958

約数の個数: 20

約数和(自身を含む): 508306752

約数和(自身を除く): 246370096

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2588, 5176, 10352, 25303, 50606, 101212, 202424, 404848, 16371041, 32742082, 65484164, 130968328, 261936656]

約数ペア:

[(1, 261936656), (2, 130968328), (4, 65484164), (8, 32742082), (16, 16371041), (647, 404848), (1294, 202424), (2588, 101212), (5176, 50606), (10352, 25303)]