12994640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1419

約数の個数: 40

約数和(自身を含む): 30474240

約数和(自身を除く): 17479600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1279, 2032, 2540, 2558, 5080, 5116, 6395, 10160, 10232, 12790, 20464, 25580, 51160, 102320, 162433, 324866, 649732, 812165, 1299464, 1624330, 2598928, 3248660, 6497320, 12994640]

約数ペア:

[(1, 12994640), (2, 6497320), (4, 3248660), (5, 2598928), (8, 1624330), (10, 1299464), (16, 812165), (20, 649732), (40, 324866), (80, 162433), (127, 102320), (254, 51160), (508, 25580), (635, 20464), (1016, 12790), (1270, 10232), (1279, 10160), (2032, 6395), (2540, 5116), (2558, 5080)]