19961600

素因数分解:

$2^8\times 5^2\times {\mathrm{3119}}^1$

素因数の和:3145

約数の個数: 54

約数和(自身を含む): 49423920

約数和(自身を除く): 29462320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3119, 3200, 6238, 6400, 12476, 15595, 24952, 31190, 49904, 62380, 77975, 99808, 124760, 155950, 199616, 249520, 311900, 399232, 499040, 623800, 798464, 998080, 1247600, 1996160, 2495200, 3992320, 4990400, 9980800, 19961600]

約数ペア:

[(1, 19961600), (2, 9980800), (4, 4990400), (5, 3992320), (8, 2495200), (10, 1996160), (16, 1247600), (20, 998080), (25, 798464), (32, 623800), (40, 499040), (50, 399232), (64, 311900), (80, 249520), (100, 199616), (128, 155950), (160, 124760), (200, 99808), (256, 77975), (320, 62380), (400, 49904), (640, 31190), (800, 24952), (1280, 15595), (1600, 12476), (3119, 6400), (3200, 6238)]