19887020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9293}}^1$

素因数の和:9409

約数の個数: 24

約数和(自身を含む): 42157584

約数和(自身を除く): 22270564

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9293, 18586, 37172, 46465, 92930, 185860, 994351, 1988702, 3977404, 4971755, 9943510, 19887020]

約数ペア:

[(1, 19887020), (2, 9943510), (4, 4971755), (5, 3977404), (10, 1988702), (20, 994351), (107, 185860), (214, 92930), (428, 46465), (535, 37172), (1070, 18586), (2140, 9293)]