68991988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 135675904

約数和(自身を除く): 66683916

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 127, 254, 337, 403, 508, 674, 806, 1348, 1612, 1651, 3302, 3937, 4381, 6604, 7874, 8762, 10447, 15748, 17524, 20894, 41788, 42799, 51181, 85598, 102362, 135811, 171196, 204724, 271622, 543244, 556387, 1112774, 1326769, 2225548, 2653538, 5307076, 17247997, 34495994, 68991988]

約数ペア:

[(1, 68991988), (2, 34495994), (4, 17247997), (13, 5307076), (26, 2653538), (31, 2225548), (52, 1326769), (62, 1112774), (124, 556387), (127, 543244), (254, 271622), (337, 204724), (403, 171196), (508, 135811), (674, 102362), (806, 85598), (1348, 51181), (1612, 42799), (1651, 41788), (3302, 20894), (3937, 17524), (4381, 15748), (6604, 10447), (7874, 8762)]