20806550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5861}}^1$

素因数の和:5944

約数の個数: 24

約数和(自身を含む): 39251952

約数和(自身を除く): 18445402

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5861, 11722, 29305, 58610, 146525, 293050, 416131, 832262, 2080655, 4161310, 10403275, 20806550]

約数ペア:

[(1, 20806550), (2, 10403275), (5, 4161310), (10, 2080655), (25, 832262), (50, 416131), (71, 293050), (142, 146525), (355, 58610), (710, 29305), (1775, 11722), (3550, 5861)]