40806818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19867}}^1$

素因数の和:19961

約数の個数: 16

約数和(自身を含む): 66756480

約数和(自身を除く): 25949662

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 19867, 39734, 258271, 516542, 1569493, 3138986, 20403409, 40806818]

約数ペア:

[(1, 40806818), (2, 20403409), (13, 3138986), (26, 1569493), (79, 516542), (158, 258271), (1027, 39734), (2054, 19867)]