27808640

素因数分解:

$2^7\times 5^1\times {\mathrm{43451}}^1$

素因数の和:43470

約数の個数: 32

約数和(自身を含む): 66481560

約数和(自身を除く): 38672920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 43451, 86902, 173804, 217255, 347608, 434510, 695216, 869020, 1390432, 1738040, 2780864, 3476080, 5561728, 6952160, 13904320, 27808640]

約数ペア:

[(1, 27808640), (2, 13904320), (4, 6952160), (5, 5561728), (8, 3476080), (10, 2780864), (16, 1738040), (20, 1390432), (32, 869020), (40, 695216), (64, 434510), (80, 347608), (128, 217255), (160, 173804), (320, 86902), (640, 43451)]