19726000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{1409}}^1$

素因数の和:1439

約数の個数: 80

約数和(自身を含む): 54550080

約数和(自身を除く): 34824080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1409, 1750, 2000, 2800, 2818, 3500, 5636, 7000, 7045, 9863, 11272, 14000, 14090, 19726, 22544, 28180, 35225, 39452, 49315, 56360, 70450, 78904, 98630, 112720, 140900, 157808, 176125, 197260, 246575, 281800, 352250, 394520, 493150, 563600, 704500, 789040, 986300, 1232875, 1409000, 1972600, 2465750, 2818000, 3945200, 4931500, 9863000, 19726000]

約数ペア:

[(1, 19726000), (2, 9863000), (4, 4931500), (5, 3945200), (7, 2818000), (8, 2465750), (10, 1972600), (14, 1409000), (16, 1232875), (20, 986300), (25, 789040), (28, 704500), (35, 563600), (40, 493150), (50, 394520), (56, 352250), (70, 281800), (80, 246575), (100, 197260), (112, 176125), (125, 157808), (140, 140900), (175, 112720), (200, 98630), (250, 78904), (280, 70450), (350, 56360), (400, 49315), (500, 39452), (560, 35225), (700, 28180), (875, 22544), (1000, 19726), (1400, 14090), (1409, 14000), (1750, 11272), (2000, 9863), (2800, 7045), (2818, 7000), (3500, 5636)]