128287145

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 196608000

約数和(自身を除く): 68320855

約数列:

[1, 5, 7, 19, 31, 35, 49, 95, 127, 133, 155, 217, 245, 343, 589, 635, 665, 889, 931, 1085, 1519, 1715, 2413, 2945, 3937, 4123, 4445, 4655, 6223, 6517, 7595, 10633, 12065, 16891, 19685, 20615, 27559, 28861, 31115, 32585, 43561, 53165, 74803, 84455, 118237, 137795, 144305, 192913, 202027, 217805, 374015, 523621, 591185, 827659, 964565, 1010135, 1350391, 2618105, 3665347, 4138295, 6751955, 18326735, 25657429, 128287145]

約数ペア:

[(1, 128287145), (5, 25657429), (7, 18326735), (19, 6751955), (31, 4138295), (35, 3665347), (49, 2618105), (95, 1350391), (127, 1010135), (133, 964565), (155, 827659), (217, 591185), (245, 523621), (343, 374015), (589, 217805), (635, 202027), (665, 192913), (889, 144305), (931, 137795), (1085, 118237), (1519, 84455), (1715, 74803), (2413, 53165), (2945, 43561), (3937, 32585), (4123, 31115), (4445, 28861), (4655, 27559), (6223, 20615), (6517, 19685), (7595, 16891), (10633, 12065)]