18079985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 27316224

約数和(自身を除く): 9236239

約数列:

[1, 5, 7, 11, 35, 55, 77, 151, 311, 385, 755, 1057, 1555, 1661, 2177, 3421, 5285, 8305, 10885, 11627, 17105, 23947, 46961, 58135, 119735, 234805, 328727, 516571, 1643635, 2582855, 3615997, 18079985]

約数ペア:

[(1, 18079985), (5, 3615997), (7, 2582855), (11, 1643635), (35, 516571), (55, 328727), (77, 234805), (151, 119735), (311, 58135), (385, 46961), (755, 23947), (1057, 17105), (1555, 11627), (1661, 10885), (2177, 8305), (3421, 5285)]