123510020

素因数分解:

$2^2\times 5^1\times {\mathrm{6175501}}^1$

素因数の和:6175510

約数の個数: 12

約数和(自身を含む): 259371084

約数和(自身を除く): 135861064

約数列:

[1, 2, 4, 5, 10, 20, 6175501, 12351002, 24702004, 30877505, 61755010, 123510020]

約数ペア:

[(1, 123510020), (2, 61755010), (4, 30877505), (5, 24702004), (10, 12351002), (20, 6175501)]