20207728

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11587}}^1$

素因数の和:11704

約数の個数: 20

約数和(自身を含む): 39515080

約数和(自身を除く): 19307352

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11587, 23174, 46348, 92696, 185392, 1262983, 2525966, 5051932, 10103864, 20207728]

約数ペア:

[(1, 20207728), (2, 10103864), (4, 5051932), (8, 2525966), (16, 1262983), (109, 185392), (218, 92696), (436, 46348), (872, 23174), (1744, 11587)]