27777280

素因数分解:

$2^8\times 5^1\times {\mathrm{21701}}^1$

素因数の和:21722

約数の個数: 36

約数和(自身を含む): 66538332

約数和(自身を除く): 38761052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 21701, 43402, 86804, 108505, 173608, 217010, 347216, 434020, 694432, 868040, 1388864, 1736080, 2777728, 3472160, 5555456, 6944320, 13888640, 27777280]

約数ペア:

[(1, 27777280), (2, 13888640), (4, 6944320), (5, 5555456), (8, 3472160), (10, 2777728), (16, 1736080), (20, 1388864), (32, 868040), (40, 694432), (64, 434020), (80, 347216), (128, 217010), (160, 173608), (256, 108505), (320, 86804), (640, 43402), (1280, 21701)]