28015280

素因数分解:

$2^4\times 5^1\times {\mathrm{350191}}^1$

素因数の和:350204

約数の個数: 20

約数和(自身を含む): 65135712

約数和(自身を除く): 37120432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 350191, 700382, 1400764, 1750955, 2801528, 3501910, 5603056, 7003820, 14007640, 28015280]

約数ペア:

[(1, 28015280), (2, 14007640), (4, 7003820), (5, 5603056), (8, 3501910), (10, 2801528), (16, 1750955), (20, 1400764), (40, 700382), (80, 350191)]