20691140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27961}}^1$

素因数の和:28007

約数の個数: 24

約数和(自身を含む): 44627352

約数和(自身を除く): 23936212

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27961, 55922, 111844, 139805, 279610, 559220, 1034557, 2069114, 4138228, 5172785, 10345570, 20691140]

約数ペア:

[(1, 20691140), (2, 10345570), (4, 5172785), (5, 4138228), (10, 2069114), (20, 1034557), (37, 559220), (74, 279610), (148, 139805), (185, 111844), (370, 55922), (740, 27961)]