448640

素因数分解:

$2^7\times 5^1\times {\mathrm{701}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 1074060

約数和(自身を除く): 625420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 701, 1402, 2804, 3505, 5608, 7010, 11216, 14020, 22432, 28040, 44864, 56080, 89728, 112160, 224320, 448640]

約数ペア:

[(1, 448640), (2, 224320), (4, 112160), (5, 89728), (8, 56080), (10, 44864), (16, 28040), (20, 22432), (32, 14020), (40, 11216), (64, 7010), (80, 5608), (128, 3505), (160, 2804), (320, 1402), (640, 701)]