27987280

素因数分解:

$2^4\times 5^1\times {\mathrm{349841}}^1$

素因数の和:349854

約数の個数: 20

約数和(自身を含む): 65070612

約数和(自身を除く): 37083332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349841, 699682, 1399364, 1749205, 2798728, 3498410, 5597456, 6996820, 13993640, 27987280]

約数ペア:

[(1, 27987280), (2, 13993640), (4, 6996820), (5, 5597456), (8, 3498410), (10, 2798728), (16, 1749205), (20, 1399364), (40, 699682), (80, 349841)]