20390128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{115853}}^1$

素因数の和:115872

約数の個数: 20

約数和(自身を含む): 43097688

約数和(自身を除く): 22707560

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 115853, 231706, 463412, 926824, 1274383, 1853648, 2548766, 5097532, 10195064, 20390128]

約数ペア:

[(1, 20390128), (2, 10195064), (4, 5097532), (8, 2548766), (11, 1853648), (16, 1274383), (22, 926824), (44, 463412), (88, 231706), (176, 115853)]