26780215

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 43009920

約数和(自身を除く): 16229705

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 133, 209, 245, 385, 523, 539, 665, 931, 1045, 1463, 2615, 2695, 3661, 4655, 5753, 7315, 9937, 10241, 18305, 25627, 28765, 40271, 49685, 51205, 69559, 109307, 128135, 201355, 281897, 347795, 486913, 546535, 765149, 1409485, 2434565, 3825745, 5356043, 26780215]

約数ペア:

[(1, 26780215), (5, 5356043), (7, 3825745), (11, 2434565), (19, 1409485), (35, 765149), (49, 546535), (55, 486913), (77, 347795), (95, 281897), (133, 201355), (209, 128135), (245, 109307), (385, 69559), (523, 51205), (539, 49685), (665, 40271), (931, 28765), (1045, 25627), (1463, 18305), (2615, 10241), (2695, 9937), (3661, 7315), (4655, 5753)]