128538240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{66947}}^1$

素因数の和:66969

約数の個数: 64

約数和(自身を含む): 409721760

約数和(自身を除く): 281183520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 66947, 133894, 200841, 267788, 334735, 401682, 535576, 669470, 803364, 1004205, 1071152, 1338940, 1606728, 2008410, 2142304, 2677880, 3213456, 4016820, 4284608, 5355760, 6426912, 8033640, 8569216, 10711520, 12853824, 16067280, 21423040, 25707648, 32134560, 42846080, 64269120, 128538240]

約数ペア:

[(1, 128538240), (2, 64269120), (3, 42846080), (4, 32134560), (5, 25707648), (6, 21423040), (8, 16067280), (10, 12853824), (12, 10711520), (15, 8569216), (16, 8033640), (20, 6426912), (24, 5355760), (30, 4284608), (32, 4016820), (40, 3213456), (48, 2677880), (60, 2142304), (64, 2008410), (80, 1606728), (96, 1338940), (120, 1071152), (128, 1004205), (160, 803364), (192, 669470), (240, 535576), (320, 401682), (384, 334735), (480, 267788), (640, 200841), (960, 133894), (1920, 66947)]