80857480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1217}}^1$

素因数の和:1390

約数の個数: 64

約数和(自身を含む): 199946880

約数和(自身を除く): 119089400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 302, 440, 604, 755, 1208, 1217, 1510, 1661, 2434, 3020, 3322, 4868, 6040, 6085, 6644, 8305, 9736, 12170, 13288, 13387, 16610, 24340, 26774, 33220, 48680, 53548, 66440, 66935, 107096, 133870, 183767, 267740, 367534, 535480, 735068, 918835, 1470136, 1837670, 2021437, 3675340, 4042874, 7350680, 8085748, 10107185, 16171496, 20214370, 40428740, 80857480]

約数ペア:

[(1, 80857480), (2, 40428740), (4, 20214370), (5, 16171496), (8, 10107185), (10, 8085748), (11, 7350680), (20, 4042874), (22, 3675340), (40, 2021437), (44, 1837670), (55, 1470136), (88, 918835), (110, 735068), (151, 535480), (220, 367534), (302, 267740), (440, 183767), (604, 133870), (755, 107096), (1208, 66935), (1217, 66440), (1510, 53548), (1661, 48680), (2434, 33220), (3020, 26774), (3322, 24340), (4868, 16610), (6040, 13387), (6085, 13288), (6644, 12170), (8305, 9736)]