2019390400

素因数分解:

$2^6\times 5^2\times {\mathrm{1262119}}^1$

素因数の和:1262141

約数の個数: 42

約数和(自身を含む): 4968966440

約数和(自身を除く): 2949576040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 1262119, 2524238, 5048476, 6310595, 10096952, 12621190, 20193904, 25242380, 31552975, 40387808, 50484760, 63105950, 80775616, 100969520, 126211900, 201939040, 252423800, 403878080, 504847600, 1009695200, 2019390400]

約数ペア:

[(1, 2019390400), (2, 1009695200), (4, 504847600), (5, 403878080), (8, 252423800), (10, 201939040), (16, 126211900), (20, 100969520), (25, 80775616), (32, 63105950), (40, 50484760), (50, 40387808), (64, 31552975), (80, 25242380), (100, 20193904), (160, 12621190), (200, 10096952), (320, 6310595), (400, 5048476), (800, 2524238), (1600, 1262119)]