16690780

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1901}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 35148960

約数和(自身を除く): 18458180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 1901, 2195, 3802, 4390, 7604, 8780, 9505, 19010, 38020, 834539, 1669078, 3338156, 4172695, 8345390, 16690780]

約数ペア:

[(1, 16690780), (2, 8345390), (4, 4172695), (5, 3338156), (10, 1669078), (20, 834539), (439, 38020), (878, 19010), (1756, 9505), (1901, 8780), (2195, 7604), (3802, 4390)]