19754960

素因数分解:

$2^4\times 5^1\times {\mathrm{246937}}^1$

素因数の和:246950

約数の個数: 20

約数和(自身を含む): 45930468

約数和(自身を除く): 26175508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246937, 493874, 987748, 1234685, 1975496, 2469370, 3950992, 4938740, 9877480, 19754960]

約数ペア:

[(1, 19754960), (2, 9877480), (4, 4938740), (5, 3950992), (8, 2469370), (10, 1975496), (16, 1234685), (20, 987748), (40, 493874), (80, 246937)]