20004680

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1433}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 45171000

約数和(自身を除く): 25166320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1433, 1745, 2792, 2866, 3490, 5732, 6980, 7165, 11464, 13960, 14330, 28660, 57320, 500117, 1000234, 2000468, 2500585, 4000936, 5001170, 10002340, 20004680]

約数ペア:

[(1, 20004680), (2, 10002340), (4, 5001170), (5, 4000936), (8, 2500585), (10, 2000468), (20, 1000234), (40, 500117), (349, 57320), (698, 28660), (1396, 14330), (1433, 13960), (1745, 11464), (2792, 7165), (2866, 6980), (3490, 5732)]