28640

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1$

素因数の和:194

約数の個数: 24

約数和(自身を含む): 68040

約数和(自身を除く): 39400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 5728, 7160, 14320, 28640]

約数ペア:

[(1, 28640), (2, 14320), (4, 7160), (5, 5728), (8, 3580), (10, 2864), (16, 1790), (20, 1432), (32, 895), (40, 716), (80, 358), (160, 179)]