128718645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 240641280

約数和(自身を除く): 111922635

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 109, 165, 187, 255, 327, 421, 545, 561, 935, 1199, 1263, 1635, 1853, 2105, 2805, 3597, 4631, 5559, 5995, 6315, 7157, 9265, 13893, 17985, 20383, 21471, 23155, 27795, 35785, 45889, 61149, 69465, 78727, 101915, 107355, 137667, 229445, 236181, 305745, 393635, 504779, 688335, 780113, 1180905, 1514337, 2340339, 2523895, 3900565, 7571685, 8581243, 11701695, 25743729, 42906215, 128718645]

約数ペア:

[(1, 128718645), (3, 42906215), (5, 25743729), (11, 11701695), (15, 8581243), (17, 7571685), (33, 3900565), (51, 2523895), (55, 2340339), (85, 1514337), (109, 1180905), (165, 780113), (187, 688335), (255, 504779), (327, 393635), (421, 305745), (545, 236181), (561, 229445), (935, 137667), (1199, 107355), (1263, 101915), (1635, 78727), (1853, 69465), (2105, 61149), (2805, 45889), (3597, 35785), (4631, 27795), (5559, 23155), (5995, 21471), (6315, 20383), (7157, 17985), (9265, 13893)]