20650916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 43088640

約数和(自身を除く): 22437724

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 79, 143, 158, 286, 316, 457, 572, 869, 914, 1027, 1738, 1828, 2054, 3476, 4108, 5027, 5941, 10054, 11297, 11882, 20108, 22594, 23764, 36103, 45188, 65351, 72206, 130702, 144412, 261404, 397133, 469339, 794266, 938678, 1588532, 1877356, 5162729, 10325458, 20650916]

約数ペア:

[(1, 20650916), (2, 10325458), (4, 5162729), (11, 1877356), (13, 1588532), (22, 938678), (26, 794266), (44, 469339), (52, 397133), (79, 261404), (143, 144412), (158, 130702), (286, 72206), (316, 65351), (457, 45188), (572, 36103), (869, 23764), (914, 22594), (1027, 20108), (1738, 11882), (1828, 11297), (2054, 10054), (3476, 5941), (4108, 5027)]