18558980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7669}}^1$

素因数の和:7700

約数の個数: 36

約数和(自身を含む): 42844620

約数和(自身を除く): 24285640

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7669, 15338, 30676, 38345, 76690, 84359, 153380, 168718, 337436, 421795, 843590, 927949, 1687180, 1855898, 3711796, 4639745, 9279490, 18558980]

約数ペア:

[(1, 18558980), (2, 9279490), (4, 4639745), (5, 3711796), (10, 1855898), (11, 1687180), (20, 927949), (22, 843590), (44, 421795), (55, 337436), (110, 168718), (121, 153380), (220, 84359), (242, 76690), (484, 38345), (605, 30676), (1210, 15338), (2420, 7669)]