25989280

素因数分解:

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

素因数の和:1421

約数の個数: 48

約数和(自身を含む): 61931520

約数和(自身を除く): 35942240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 1279, 2032, 2540, 2558, 4064, 5080, 5116, 6395, 10160, 10232, 12790, 20320, 20464, 25580, 40928, 51160, 102320, 162433, 204640, 324866, 649732, 812165, 1299464, 1624330, 2598928, 3248660, 5197856, 6497320, 12994640, 25989280]

約数ペア:

[(1, 25989280), (2, 12994640), (4, 6497320), (5, 5197856), (8, 3248660), (10, 2598928), (16, 1624330), (20, 1299464), (32, 812165), (40, 649732), (80, 324866), (127, 204640), (160, 162433), (254, 102320), (508, 51160), (635, 40928), (1016, 25580), (1270, 20464), (1279, 20320), (2032, 12790), (2540, 10232), (2558, 10160), (4064, 6395), (5080, 5116)]