208822405

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 294940800

約数和(自身を除く): 86118395

約数列:

[1, 5, 11, 23, 43, 55, 115, 121, 215, 253, 349, 473, 605, 989, 1265, 1745, 2365, 2783, 3839, 4945, 5203, 8027, 10879, 13915, 15007, 19195, 26015, 40135, 42229, 54395, 75035, 88297, 119669, 165077, 211145, 345161, 441485, 598345, 825385, 971267, 1725805, 1815847, 3796771, 4856335, 9079235, 18983855, 41764481, 208822405]

約数ペア:

[(1, 208822405), (5, 41764481), (11, 18983855), (23, 9079235), (43, 4856335), (55, 3796771), (115, 1815847), (121, 1725805), (215, 971267), (253, 825385), (349, 598345), (473, 441485), (605, 345161), (989, 211145), (1265, 165077), (1745, 119669), (2365, 88297), (2783, 75035), (3839, 54395), (4945, 42229), (5203, 40135), (8027, 26015), (10879, 19195), (13915, 15007)]