81806192

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393299}}^1$

素因数の和:393320

約数の個数: 20

約数和(自身を含む): 170692200

約数和(自身を除く): 88886008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393299, 786598, 1573196, 3146392, 5112887, 6292784, 10225774, 20451548, 40903096, 81806192]

約数ペア:

[(1, 81806192), (2, 40903096), (4, 20451548), (8, 10225774), (13, 6292784), (16, 5112887), (26, 3146392), (52, 1573196), (104, 786598), (208, 393299)]