18144640

素因数分解:

$2^7\times 5^1\times {\mathrm{28351}}^1$

素因数の和:28370

約数の個数: 32

約数和(自身を含む): 43378560

約数和(自身を除く): 25233920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28351, 56702, 113404, 141755, 226808, 283510, 453616, 567020, 907232, 1134040, 1814464, 2268080, 3628928, 4536160, 9072320, 18144640]

約数ペア:

[(1, 18144640), (2, 9072320), (4, 4536160), (5, 3628928), (8, 2268080), (10, 1814464), (16, 1134040), (20, 907232), (32, 567020), (40, 453616), (64, 283510), (80, 226808), (128, 141755), (160, 113404), (320, 56702), (640, 28351)]