81866096

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393587}}^1$

素因数の和:393608

約数の個数: 20

約数和(自身を含む): 170817192

約数和(自身を除く): 88951096

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393587, 787174, 1574348, 3148696, 5116631, 6297392, 10233262, 20466524, 40933048, 81866096]

約数ペア:

[(1, 81866096), (2, 40933048), (4, 20466524), (8, 10233262), (13, 6297392), (16, 5116631), (26, 3148696), (52, 1574348), (104, 787174), (208, 393587)]