78720560

素因数分解:

$2^4\times 5^1\times {\mathrm{984007}}^1$

素因数の和:984020

約数の個数: 20

約数和(自身を含む): 183025488

約数和(自身を除く): 104304928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 984007, 1968014, 3936028, 4920035, 7872056, 9840070, 15744112, 19680140, 39360280, 78720560]

約数ペア:

[(1, 78720560), (2, 39360280), (4, 19680140), (5, 15744112), (8, 9840070), (10, 7872056), (16, 4920035), (20, 3936028), (40, 1968014), (80, 984007)]