131216

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 20

約数和(自身を含む): 260400

約数和(自身を除く): 129184

約数列:

[1, 2, 4, 8, 16, 59, 118, 139, 236, 278, 472, 556, 944, 1112, 2224, 8201, 16402, 32804, 65608, 131216]

約数ペア:

[(1, 131216), (2, 65608), (4, 32804), (8, 16402), (16, 8201), (59, 2224), (118, 1112), (139, 944), (236, 556), (278, 472)]