15780821788

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{739}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 28137760000

約数和(自身を除く): 12356938212

約数列:

[1, 2, 4, 139, 193, 199, 278, 386, 398, 556, 739, 772, 796, 1478, 2956, 26827, 27661, 38407, 53654, 55322, 76814, 102721, 107308, 110644, 142627, 147061, 153628, 205442, 285254, 294122, 410884, 570508, 588244, 5338573, 10677146, 19825153, 20441479, 21354292, 28382773, 39650306, 40882958, 56765546, 79300612, 81765916, 113531092, 3945205447, 7890410894, 15780821788]

約数ペア:

[(1, 15780821788), (2, 7890410894), (4, 3945205447), (139, 113531092), (193, 81765916), (199, 79300612), (278, 56765546), (386, 40882958), (398, 39650306), (556, 28382773), (739, 21354292), (772, 20441479), (796, 19825153), (1478, 10677146), (2956, 5338573), (26827, 588244), (27661, 570508), (38407, 410884), (53654, 294122), (55322, 285254), (76814, 205442), (102721, 153628), (107308, 147061), (110644, 142627)]