388979084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{2663}}^1$

素因数の和:2786

約数の個数: 36

約数和(自身を含む): 747449136

約数和(自身を除く): 358470052

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2663, 2756, 2809, 5326, 5618, 10652, 11236, 34619, 36517, 69238, 73034, 138476, 141139, 146068, 282278, 564556, 1834807, 3669614, 7339228, 7480367, 14960734, 29921468, 97244771, 194489542, 388979084]

約数ペア:

[(1, 388979084), (2, 194489542), (4, 97244771), (13, 29921468), (26, 14960734), (52, 7480367), (53, 7339228), (106, 3669614), (212, 1834807), (689, 564556), (1378, 282278), (2663, 146068), (2756, 141139), (2809, 138476), (5326, 73034), (5618, 69238), (10652, 36517), (11236, 34619)]