13888640

素因数分解:

$2^7\times 5^1\times {\mathrm{21701}}^1$

素因数の和:21720

約数の個数: 32

約数和(自身を含む): 33204060

約数和(自身を除く): 19315420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 21701, 43402, 86804, 108505, 173608, 217010, 347216, 434020, 694432, 868040, 1388864, 1736080, 2777728, 3472160, 6944320, 13888640]

約数ペア:

[(1, 13888640), (2, 6944320), (4, 3472160), (5, 2777728), (8, 1736080), (10, 1388864), (16, 868040), (20, 694432), (32, 434020), (40, 347216), (64, 217010), (80, 173608), (128, 108505), (160, 86804), (320, 43402), (640, 21701)]