20831290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{677}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 39980304

約数和(自身を除く): 19149014

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 181, 362, 677, 905, 1354, 1810, 3077, 3385, 6154, 6770, 11509, 15385, 23018, 30770, 57545, 115090, 122537, 245074, 612685, 1225370, 2083129, 4166258, 10415645, 20831290]

約数ペア:

[(1, 20831290), (2, 10415645), (5, 4166258), (10, 2083129), (17, 1225370), (34, 612685), (85, 245074), (170, 122537), (181, 115090), (362, 57545), (677, 30770), (905, 23018), (1354, 15385), (1810, 11509), (3077, 6770), (3385, 6154)]