142464640

素因数分解:

$2^7\times 5^1\times {\mathrm{222601}}^1$

素因数の和:222620

約数の個数: 32

約数和(自身を含む): 340581060

約数和(自身を除く): 198116420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 222601, 445202, 890404, 1113005, 1780808, 2226010, 3561616, 4452020, 7123232, 8904040, 14246464, 17808080, 28492928, 35616160, 71232320, 142464640]

約数ペア:

[(1, 142464640), (2, 71232320), (4, 35616160), (5, 28492928), (8, 17808080), (10, 14246464), (16, 8904040), (20, 7123232), (32, 4452020), (40, 3561616), (64, 2226010), (80, 1780808), (128, 1113005), (160, 890404), (320, 445202), (640, 222601)]