129720878

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{89959}}^1$

素因数の和:90071

約数の個数: 16

約数和(自身を含む): 224540160

約数和(自身を除く): 94819282

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 89959, 179918, 629713, 1259426, 9265777, 18531554, 64860439, 129720878]

約数ペア:

[(1, 129720878), (2, 64860439), (7, 18531554), (14, 9265777), (103, 1259426), (206, 629713), (721, 179918), (1442, 89959)]