168389980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{765409}}^1$

素因数の和:765429

約数の個数: 24

約数和(自身を含む): 385766640

約数和(自身を除く): 217376660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 765409, 1530818, 3061636, 3827045, 7654090, 8419499, 15308180, 16838998, 33677996, 42097495, 84194990, 168389980]

約数ペア:

[(1, 168389980), (2, 84194990), (4, 42097495), (5, 33677996), (10, 16838998), (11, 15308180), (20, 8419499), (22, 7654090), (44, 3827045), (55, 3061636), (110, 1530818), (220, 765409)]