20111212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 19886228

約数列:

[1, 2, 4, 11, 22, 44, 59, 61, 118, 122, 127, 236, 244, 254, 508, 649, 671, 1298, 1342, 1397, 2596, 2684, 2794, 3599, 5588, 7198, 7493, 7747, 14396, 14986, 15494, 29972, 30988, 39589, 79178, 82423, 85217, 158356, 164846, 170434, 329692, 340868, 457073, 914146, 1828292, 5027803, 10055606, 20111212]

約数ペア:

[(1, 20111212), (2, 10055606), (4, 5027803), (11, 1828292), (22, 914146), (44, 457073), (59, 340868), (61, 329692), (118, 170434), (122, 164846), (127, 158356), (236, 85217), (244, 82423), (254, 79178), (508, 39589), (649, 30988), (671, 29972), (1298, 15494), (1342, 14986), (1397, 14396), (2596, 7747), (2684, 7493), (2794, 7198), (3599, 5588)]