198888910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{164371}}^1$

素因数の和:164400

約数の個数: 24

約数和(自身を含む): 393506568

約数和(自身を除く): 194617658

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 164371, 328742, 821855, 1643710, 1808081, 3616162, 9040405, 18080810, 19888891, 39777782, 99444455, 198888910]

約数ペア:

[(1, 198888910), (2, 99444455), (5, 39777782), (10, 19888891), (11, 18080810), (22, 9040405), (55, 3616162), (110, 1808081), (121, 1643710), (242, 821855), (605, 328742), (1210, 164371)]