19912700

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1861}}^1$

素因数の和:1982

約数の個数: 36

約数和(自身を含む): 43637832

約数和(自身を除く): 23725132

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 1861, 2140, 2675, 3722, 5350, 7444, 9305, 10700, 18610, 37220, 46525, 93050, 186100, 199127, 398254, 796508, 995635, 1991270, 3982540, 4978175, 9956350, 19912700]

約数ペア:

[(1, 19912700), (2, 9956350), (4, 4978175), (5, 3982540), (10, 1991270), (20, 995635), (25, 796508), (50, 398254), (100, 199127), (107, 186100), (214, 93050), (428, 46525), (535, 37220), (1070, 18610), (1861, 10700), (2140, 9305), (2675, 7444), (3722, 5350)]