68690128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{330241}}^1$

素因数の和:330262

約数の個数: 20

約数和(自身を含む): 143325028

約数和(自身を除く): 74634900

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 330241, 660482, 1320964, 2641928, 4293133, 5283856, 8586266, 17172532, 34345064, 68690128]

約数ペア:

[(1, 68690128), (2, 34345064), (4, 17172532), (8, 8586266), (13, 5283856), (16, 4293133), (26, 2641928), (52, 1320964), (104, 660482), (208, 330241)]