81872560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13291}}^1$

素因数の和:13322

約数の個数: 80

約数和(自身を含む): 237341952

約数和(自身を除く): 155469392

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 13291, 26582, 53164, 66455, 93037, 106328, 132910, 146201, 186074, 212656, 265820, 292402, 372148, 465185, 531640, 584804, 731005, 744296, 930370, 1023407, 1063280, 1169608, 1462010, 1488592, 1860740, 2046814, 2339216, 2924020, 3721480, 4093628, 5117035, 5848040, 7442960, 8187256, 10234070, 11696080, 16374512, 20468140, 40936280, 81872560]

約数ペア:

[(1, 81872560), (2, 40936280), (4, 20468140), (5, 16374512), (7, 11696080), (8, 10234070), (10, 8187256), (11, 7442960), (14, 5848040), (16, 5117035), (20, 4093628), (22, 3721480), (28, 2924020), (35, 2339216), (40, 2046814), (44, 1860740), (55, 1488592), (56, 1462010), (70, 1169608), (77, 1063280), (80, 1023407), (88, 930370), (110, 744296), (112, 731005), (140, 584804), (154, 531640), (176, 465185), (220, 372148), (280, 292402), (308, 265820), (385, 212656), (440, 186074), (560, 146201), (616, 132910), (770, 106328), (880, 93037), (1232, 66455), (1540, 53164), (3080, 26582), (6160, 13291)]