261064336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1255117}}^1$

素因数の和:1255138

約数の個数: 20

約数和(自身を含む): 544721212

約数和(自身を除く): 283656876

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1255117, 2510234, 5020468, 10040936, 16316521, 20081872, 32633042, 65266084, 130532168, 261064336]

約数ペア:

[(1, 261064336), (2, 130532168), (4, 65266084), (8, 32633042), (13, 20081872), (16, 16316521), (26, 10040936), (52, 5020468), (104, 2510234), (208, 1255117)]