20125204

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{967}}^1$

素因数の和:1036

約数の個数: 36

約数和(自身を含む): 39653152

約数和(自身を除く): 19527948

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 967, 1892, 1934, 3868, 5203, 10406, 10637, 20812, 21274, 41581, 42548, 83162, 117007, 166324, 234014, 457391, 468028, 914782, 1829564, 5031301, 10062602, 20125204]

約数ペア:

[(1, 20125204), (2, 10062602), (4, 5031301), (11, 1829564), (22, 914782), (43, 468028), (44, 457391), (86, 234014), (121, 166324), (172, 117007), (242, 83162), (473, 42548), (484, 41581), (946, 21274), (967, 20812), (1892, 10637), (1934, 10406), (3868, 5203)]