80637040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2198

約数の個数: 80

約数和(自身を含む): 209379456

約数和(自身を除く): 128742416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2131, 2365, 3440, 3784, 4262, 4730, 7568, 8524, 9460, 10655, 17048, 18920, 21310, 23441, 34096, 37840, 42620, 46882, 85240, 91633, 93764, 117205, 170480, 183266, 187528, 234410, 366532, 375056, 458165, 468820, 733064, 916330, 937640, 1007963, 1466128, 1832660, 1875280, 2015926, 3665320, 4031852, 5039815, 7330640, 8063704, 10079630, 16127408, 20159260, 40318520, 80637040]

約数ペア:

[(1, 80637040), (2, 40318520), (4, 20159260), (5, 16127408), (8, 10079630), (10, 8063704), (11, 7330640), (16, 5039815), (20, 4031852), (22, 3665320), (40, 2015926), (43, 1875280), (44, 1832660), (55, 1466128), (80, 1007963), (86, 937640), (88, 916330), (110, 733064), (172, 468820), (176, 458165), (215, 375056), (220, 366532), (344, 234410), (430, 187528), (440, 183266), (473, 170480), (688, 117205), (860, 93764), (880, 91633), (946, 85240), (1720, 46882), (1892, 42620), (2131, 37840), (2365, 34096), (3440, 23441), (3784, 21310), (4262, 18920), (4730, 17048), (7568, 10655), (8524, 9460)]