78889690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{42187}}^1$

素因数の和:42222

約数の個数: 32

約数和(自身を含む): 164026944

約数和(自身を除く): 85137254

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 42187, 84374, 210935, 421870, 464057, 717179, 928114, 1434358, 2320285, 3585895, 4640570, 7171790, 7888969, 15777938, 39444845, 78889690]

約数ペア:

[(1, 78889690), (2, 39444845), (5, 15777938), (10, 7888969), (11, 7171790), (17, 4640570), (22, 3585895), (34, 2320285), (55, 1434358), (85, 928114), (110, 717179), (170, 464057), (187, 421870), (374, 210935), (935, 84374), (1870, 42187)]