131878316

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 259983360

約数和(自身を除く): 128105044

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 103, 206, 323, 412, 646, 991, 1292, 1751, 1957, 1982, 3502, 3914, 3964, 7004, 7828, 16847, 18829, 33269, 33694, 37658, 66538, 67388, 75316, 102073, 133076, 204146, 320093, 408292, 640186, 1280372, 1735241, 1939387, 3470482, 3878774, 6940964, 7757548, 32969579, 65939158, 131878316]

約数ペア:

[(1, 131878316), (2, 65939158), (4, 32969579), (17, 7757548), (19, 6940964), (34, 3878774), (38, 3470482), (68, 1939387), (76, 1735241), (103, 1280372), (206, 640186), (323, 408292), (412, 320093), (646, 204146), (991, 133076), (1292, 102073), (1751, 75316), (1957, 67388), (1982, 66538), (3502, 37658), (3914, 33694), (3964, 33269), (7004, 18829), (7828, 16847)]