19508560

素因数分解:

$2^4\times 5^1\times {\mathrm{243857}}^1$

素因数の和:243870

約数の個数: 20

約数和(自身を含む): 45357588

約数和(自身を除く): 25849028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243857, 487714, 975428, 1219285, 1950856, 2438570, 3901712, 4877140, 9754280, 19508560]

約数ペア:

[(1, 19508560), (2, 9754280), (4, 4877140), (5, 3901712), (8, 2438570), (10, 1950856), (16, 1219285), (20, 975428), (40, 487714), (80, 243857)]