68147945

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{829}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 84082320

約数和(自身を除く): 15934375

約数列:

[1, 5, 41, 205, 401, 829, 2005, 4145, 16441, 33989, 82205, 169945, 332429, 1662145, 13629589, 68147945]

約数ペア:

[(1, 68147945), (5, 13629589), (41, 1662145), (205, 332429), (401, 169945), (829, 82205), (2005, 33989), (4145, 16441)]