81434320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3191}}^1$

素因数の和:3244

約数の個数: 80

約数和(自身を含む): 213736320

約数和(自身を除く): 132302000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 3190, 3191, 5104, 6380, 6382, 12760, 12764, 15955, 25520, 25528, 31910, 35101, 51056, 63820, 70202, 92539, 127640, 140404, 175505, 185078, 255280, 280808, 351010, 370156, 462695, 561616, 702020, 740312, 925390, 1017929, 1404040, 1480624, 1850780, 2035858, 2808080, 3701560, 4071716, 5089645, 7403120, 8143432, 10179290, 16286864, 20358580, 40717160, 81434320]

約数ペア:

[(1, 81434320), (2, 40717160), (4, 20358580), (5, 16286864), (8, 10179290), (10, 8143432), (11, 7403120), (16, 5089645), (20, 4071716), (22, 3701560), (29, 2808080), (40, 2035858), (44, 1850780), (55, 1480624), (58, 1404040), (80, 1017929), (88, 925390), (110, 740312), (116, 702020), (145, 561616), (176, 462695), (220, 370156), (232, 351010), (290, 280808), (319, 255280), (440, 185078), (464, 175505), (580, 140404), (638, 127640), (880, 92539), (1160, 70202), (1276, 63820), (1595, 51056), (2320, 35101), (2552, 31910), (3190, 25528), (3191, 25520), (5104, 15955), (6380, 12764), (6382, 12760)]