80050640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7879}}^1$

素因数の和:8019

約数の個数: 40

約数和(自身を含む): 187607040

約数和(自身を除く): 107556400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 7879, 10160, 15758, 31516, 39395, 63032, 78790, 126064, 157580, 315160, 630320, 1000633, 2001266, 4002532, 5003165, 8005064, 10006330, 16010128, 20012660, 40025320, 80050640]

約数ペア:

[(1, 80050640), (2, 40025320), (4, 20012660), (5, 16010128), (8, 10006330), (10, 8005064), (16, 5003165), (20, 4002532), (40, 2001266), (80, 1000633), (127, 630320), (254, 315160), (508, 157580), (635, 126064), (1016, 78790), (1270, 63032), (2032, 39395), (2540, 31516), (5080, 15758), (7879, 10160)]