20804932496

素因数分解:

$2^4\times {\mathrm{2663}}^1\times {\mathrm{488287}}^1$

素因数の和:490958

約数の個数: 20

約数和(自身を含む): 40324776192

約数和(自身を除く): 19519843696

約数列:

[1, 2, 4, 8, 16, 2663, 5326, 10652, 21304, 42608, 488287, 976574, 1953148, 3906296, 7812592, 1300308281, 2600616562, 5201233124, 10402466248, 20804932496]

約数ペア:

[(1, 20804932496), (2, 10402466248), (4, 5201233124), (8, 2600616562), (16, 1300308281), (2663, 7812592), (5326, 3906296), (10652, 1953148), (21304, 976574), (42608, 488287)]