168787564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 342720000

約数和(自身を除く): 173932436

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 101, 202, 209, 404, 418, 836, 1111, 1919, 1999, 2222, 3838, 3998, 4444, 7676, 7996, 21109, 21989, 37981, 42218, 43978, 75962, 84436, 87956, 151924, 201899, 403798, 417791, 807596, 835582, 1671164, 2220889, 3836081, 4441778, 7672162, 8883556, 15344324, 42196891, 84393782, 168787564]

約数ペア:

[(1, 168787564), (2, 84393782), (4, 42196891), (11, 15344324), (19, 8883556), (22, 7672162), (38, 4441778), (44, 3836081), (76, 2220889), (101, 1671164), (202, 835582), (209, 807596), (404, 417791), (418, 403798), (836, 201899), (1111, 151924), (1919, 87956), (1999, 84436), (2222, 75962), (3838, 43978), (3998, 42218), (4444, 37981), (7676, 21989), (7996, 21109)]