128417825

素因数分解:

$5^2\times {\mathrm{103}}^1\times {\mathrm{49871}}^1$

素因数の和:49984

約数の個数: 12

約数和(自身を含む): 160787328

約数和(自身を除く): 32369503

約数列:

[1, 5, 25, 103, 515, 2575, 49871, 249355, 1246775, 5136713, 25683565, 128417825]

約数ペア:

[(1, 128417825), (5, 25683565), (25, 5136713), (103, 1246775), (515, 249355), (2575, 49871)]