81874560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42643}}^1$

素因数の和:42665

約数の個数: 64

約数和(自身を含む): 260981280

約数和(自身を除く): 179106720

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, 42643, 85286, 127929, 170572, 213215, 255858, 341144, 426430, 511716, 639645, 682288, 852860, 1023432, 1279290, 1364576, 1705720, 2046864, 2558580, 2729152, 3411440, 4093728, 5117160, 5458304, 6822880, 8187456, 10234320, 13645760, 16374912, 20468640, 27291520, 40937280, 81874560]

約数ペア:

[(1, 81874560), (2, 40937280), (3, 27291520), (4, 20468640), (5, 16374912), (6, 13645760), (8, 10234320), (10, 8187456), (12, 6822880), (15, 5458304), (16, 5117160), (20, 4093728), (24, 3411440), (30, 2729152), (32, 2558580), (40, 2046864), (48, 1705720), (60, 1364576), (64, 1279290), (80, 1023432), (96, 852860), (120, 682288), (128, 639645), (160, 511716), (192, 426430), (240, 341144), (320, 255858), (384, 213215), (480, 170572), (640, 127929), (960, 85286), (1920, 42643)]