80307280

素因数分解:

$2^4\times 5^1\times {\mathrm{1003841}}^1$

素因数の和:1003854

約数の個数: 20

約数和(自身を含む): 186714612

約数和(自身を除く): 106407332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1003841, 2007682, 4015364, 5019205, 8030728, 10038410, 16061456, 20076820, 40153640, 80307280]

約数ペア:

[(1, 80307280), (2, 40153640), (4, 20076820), (5, 16061456), (8, 10038410), (10, 8030728), (16, 5019205), (20, 4015364), (40, 2007682), (80, 1003841)]