20012660

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7879}}^1$

素因数の和:8015

約数の個数: 24

約数和(自身を含む): 42362880

約数和(自身を除く): 22350220

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7879, 15758, 31516, 39395, 78790, 157580, 1000633, 2001266, 4002532, 5003165, 10006330, 20012660]

約数ペア:

[(1, 20012660), (2, 10006330), (4, 5003165), (5, 4002532), (10, 2001266), (20, 1000633), (127, 157580), (254, 78790), (508, 39395), (635, 31516), (1270, 15758), (2540, 7879)]