81099824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389903}}^1$

素因数の和:389924

約数の個数: 20

約数和(自身を含む): 169218336

約数和(自身を除く): 88118512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389903, 779806, 1559612, 3119224, 5068739, 6238448, 10137478, 20274956, 40549912, 81099824]

約数ペア:

[(1, 81099824), (2, 40549912), (4, 20274956), (8, 10137478), (13, 6238448), (16, 5068739), (26, 3119224), (52, 1559612), (104, 779806), (208, 389903)]