12885920

素因数分解:

$2^5\times 5^1\times {\mathrm{80537}}^1$

素因数の和:80552

約数の個数: 24

約数和(自身を含む): 30443364

約数和(自身を除く): 17557444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 80537, 161074, 322148, 402685, 644296, 805370, 1288592, 1610740, 2577184, 3221480, 6442960, 12885920]

約数ペア:

[(1, 12885920), (2, 6442960), (4, 3221480), (5, 2577184), (8, 1610740), (10, 1288592), (16, 805370), (20, 644296), (32, 402685), (40, 322148), (80, 161074), (160, 80537)]