128913960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153469}}^1$

素因数の和:153490

約数の個数: 64

約数和(自身を含む): 441993600

約数和(自身を除く): 313079640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 153469, 306938, 460407, 613876, 767345, 920814, 1074283, 1227752, 1534690, 1841628, 2148566, 2302035, 3069380, 3222849, 3683256, 4297132, 4604070, 5371415, 6138760, 6445698, 8594264, 9208140, 10742830, 12891396, 16114245, 18416280, 21485660, 25782792, 32228490, 42971320, 64456980, 128913960]

約数ペア:

[(1, 128913960), (2, 64456980), (3, 42971320), (4, 32228490), (5, 25782792), (6, 21485660), (7, 18416280), (8, 16114245), (10, 12891396), (12, 10742830), (14, 9208140), (15, 8594264), (20, 6445698), (21, 6138760), (24, 5371415), (28, 4604070), (30, 4297132), (35, 3683256), (40, 3222849), (42, 3069380), (56, 2302035), (60, 2148566), (70, 1841628), (84, 1534690), (105, 1227752), (120, 1074283), (140, 920814), (168, 767345), (210, 613876), (280, 460407), (420, 306938), (840, 153469)]