18480850

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4153}}^1$

素因数の和:4254

約数の個数: 24

約数和(自身を含む): 34768980

約数和(自身を除く): 16288130

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4153, 4450, 8306, 20765, 41530, 103825, 207650, 369617, 739234, 1848085, 3696170, 9240425, 18480850]

約数ペア:

[(1, 18480850), (2, 9240425), (5, 3696170), (10, 1848085), (25, 739234), (50, 369617), (89, 207650), (178, 103825), (445, 41530), (890, 20765), (2225, 8306), (4153, 4450)]