20131990165

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{28123}}^1$

素因数の和:28429

約数の個数: 32

約数和(自身を含む): 28008804096

約数和(自身を除く): 7876813931

約数列:

[1, 5, 7, 35, 113, 181, 565, 791, 905, 1267, 3955, 6335, 20453, 28123, 102265, 140615, 143171, 196861, 715855, 984305, 3177899, 5090263, 15889495, 22245293, 25451315, 35631841, 111226465, 178159205, 575199719, 2875998595, 4026398033, 20131990165]

約数ペア:

[(1, 20131990165), (5, 4026398033), (7, 2875998595), (35, 575199719), (113, 178159205), (181, 111226465), (565, 35631841), (791, 25451315), (905, 22245293), (1267, 15889495), (3955, 5090263), (6335, 3177899), (20453, 984305), (28123, 715855), (102265, 196861), (140615, 143171)]