81161392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{390199}}^1$

素因数の和:390220

約数の個数: 20

約数和(自身を含む): 169346800

約数和(自身を除く): 88185408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 390199, 780398, 1560796, 3121592, 5072587, 6243184, 10145174, 20290348, 40580696, 81161392]

約数ペア:

[(1, 81161392), (2, 40580696), (4, 20290348), (8, 10145174), (13, 6243184), (16, 5072587), (26, 3121592), (52, 1560796), (104, 780398), (208, 390199)]