20578660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27809}}^1$

素因数の和:27855

約数の個数: 24

約数和(自身を含む): 44384760

約数和(自身を除く): 23806100

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27809, 55618, 111236, 139045, 278090, 556180, 1028933, 2057866, 4115732, 5144665, 10289330, 20578660]

約数ペア:

[(1, 20578660), (2, 10289330), (4, 5144665), (5, 4115732), (10, 2057866), (20, 1028933), (37, 556180), (74, 278090), (148, 139045), (185, 111236), (370, 55618), (740, 27809)]