21772000

素因数分解:

$2^5\times 5^3\times {\mathrm{5443}}^1$

素因数の和:5468

約数の個数: 48

約数和(自身を含む): 53503632

約数和(自身を除く): 31731632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5443, 10886, 21772, 27215, 43544, 54430, 87088, 108860, 136075, 174176, 217720, 272150, 435440, 544300, 680375, 870880, 1088600, 1360750, 2177200, 2721500, 4354400, 5443000, 10886000, 21772000]

約数ペア:

[(1, 21772000), (2, 10886000), (4, 5443000), (5, 4354400), (8, 2721500), (10, 2177200), (16, 1360750), (20, 1088600), (25, 870880), (32, 680375), (40, 544300), (50, 435440), (80, 272150), (100, 217720), (125, 174176), (160, 136075), (200, 108860), (250, 87088), (400, 54430), (500, 43544), (800, 27215), (1000, 21772), (2000, 10886), (4000, 5443)]