128538542

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{7481}}^1$

素因数の和:7576

約数の個数: 24

約数和(自身を含む): 214942896

約数和(自身を除く): 86404354

約数列:

[1, 2, 11, 22, 71, 121, 142, 242, 781, 1562, 7481, 8591, 14962, 17182, 82291, 164582, 531151, 905201, 1062302, 1810402, 5842661, 11685322, 64269271, 128538542]

約数ペア:

[(1, 128538542), (2, 64269271), (11, 11685322), (22, 5842661), (71, 1810402), (121, 1062302), (142, 905201), (242, 531151), (781, 164582), (1562, 82291), (7481, 17182), (8591, 14962)]