209563255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6469}}^1$

素因数の和:6535

約数の個数: 32

約数和(自身を含む): 298137600

約数和(自身を除く): 88574345

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 589, 1045, 1705, 2945, 6469, 6479, 32345, 32395, 71159, 122911, 200539, 355795, 614555, 1002695, 1352021, 2205929, 3810241, 6760105, 11029645, 19051205, 41912651, 209563255]

約数ペア:

[(1, 209563255), (5, 41912651), (11, 19051205), (19, 11029645), (31, 6760105), (55, 3810241), (95, 2205929), (155, 1352021), (209, 1002695), (341, 614555), (589, 355795), (1045, 200539), (1705, 122911), (2945, 71159), (6469, 32395), (6479, 32345)]