81022540

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{37861}}^1$

素因数の和:37977

約数の個数: 24

約数和(自身を含む): 171742032

約数和(自身を除く): 90719492

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 37861, 75722, 151444, 189305, 378610, 757220, 4051127, 8102254, 16204508, 20255635, 40511270, 81022540]

約数ペア:

[(1, 81022540), (2, 40511270), (4, 20255635), (5, 16204508), (10, 8102254), (20, 4051127), (107, 757220), (214, 378610), (428, 189305), (535, 151444), (1070, 75722), (2140, 37861)]