20658580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27917}}^1$

素因数の和:27963

約数の個数: 24

約数和(自身を含む): 44557128

約数和(自身を除く): 23898548

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27917, 55834, 111668, 139585, 279170, 558340, 1032929, 2065858, 4131716, 5164645, 10329290, 20658580]

約数ペア:

[(1, 20658580), (2, 10329290), (4, 5164645), (5, 4131716), (10, 2065858), (20, 1032929), (37, 558340), (74, 279170), (148, 139585), (185, 111668), (370, 55834), (740, 27917)]