51912880

素因数分解:

$2^4\times 5^1\times {\mathrm{648911}}^1$

素因数の和:648924

約数の個数: 20

約数和(自身を含む): 120697632

約数和(自身を除く): 68784752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648911, 1297822, 2595644, 3244555, 5191288, 6489110, 10382576, 12978220, 25956440, 51912880]

約数ペア:

[(1, 51912880), (2, 25956440), (4, 12978220), (5, 10382576), (8, 6489110), (10, 5191288), (16, 3244555), (20, 2595644), (40, 1297822), (80, 648911)]