51017500

素因数分解:

$2^2\times 5^4\times {\mathrm{20407}}^1$

素因数の和:20431

約数の個数: 30

約数和(自身を含む): 111570536

約数和(自身を除く): 60553036

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 20407, 40814, 81628, 102035, 204070, 408140, 510175, 1020350, 2040700, 2550875, 5101750, 10203500, 12754375, 25508750, 51017500]

約数ペア:

[(1, 51017500), (2, 25508750), (4, 12754375), (5, 10203500), (10, 5101750), (20, 2550875), (25, 2040700), (50, 1020350), (100, 510175), (125, 408140), (250, 204070), (500, 102035), (625, 81628), (1250, 40814), (2500, 20407)]