20512474556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{896681}}^1$

素因数の和:896754

約数の個数: 48

約数和(自身を含む): 44188488960

約数和(自身を除く): 23676014404

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 1204, 1634, 3268, 5719, 11438, 22876, 896681, 1793362, 3586724, 6276767, 12553534, 17036939, 25107068, 34073878, 38557283, 68147756, 77114566, 119258573, 154229132, 238517146, 269900981, 477034292, 539801962, 732588377, 1079603924, 1465176754, 2930353508, 5128118639, 10256237278, 20512474556]

約数ペア:

[(1, 20512474556), (2, 10256237278), (4, 5128118639), (7, 2930353508), (14, 1465176754), (19, 1079603924), (28, 732588377), (38, 539801962), (43, 477034292), (76, 269900981), (86, 238517146), (133, 154229132), (172, 119258573), (266, 77114566), (301, 68147756), (532, 38557283), (602, 34073878), (817, 25107068), (1204, 17036939), (1634, 12553534), (3268, 6276767), (5719, 3586724), (11438, 1793362), (22876, 896681)]