19537780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13759}}^1$

素因数の和:13839

約数の個数: 24

約数和(自身を含む): 41610240

約数和(自身を除く): 22072460

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13759, 27518, 55036, 68795, 137590, 275180, 976889, 1953778, 3907556, 4884445, 9768890, 19537780]

約数ペア:

[(1, 19537780), (2, 9768890), (4, 4884445), (5, 3907556), (10, 1953778), (20, 976889), (71, 275180), (142, 137590), (284, 68795), (355, 55036), (710, 27518), (1420, 13759)]