19023580

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1439}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 40037760

約数和(自身を除く): 21014180

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 1439, 2644, 2878, 3305, 5756, 6610, 7195, 13220, 14390, 28780, 951179, 1902358, 3804716, 4755895, 9511790, 19023580]

約数ペア:

[(1, 19023580), (2, 9511790), (4, 4755895), (5, 3804716), (10, 1902358), (20, 951179), (661, 28780), (1322, 14390), (1439, 13220), (2644, 7195), (2878, 6610), (3305, 5756)]