20091580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14149}}^1$

素因数の和:14229

約数の個数: 24

約数和(自身を含む): 42789600

約数和(自身を除く): 22698020

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14149, 28298, 56596, 70745, 141490, 282980, 1004579, 2009158, 4018316, 5022895, 10045790, 20091580]

約数ペア:

[(1, 20091580), (2, 10045790), (4, 5022895), (5, 4018316), (10, 2009158), (20, 1004579), (71, 282980), (142, 141490), (284, 70745), (355, 56596), (710, 28298), (1420, 14149)]