71320028

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{105503}}^1$

素因数の和:105533

約数の個数: 18

約数和(自身を含む): 135150624

約数和(自身を除く): 63830596

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 105503, 211006, 422012, 1371539, 2743078, 5486156, 17830007, 35660014, 71320028]

約数ペア:

[(1, 71320028), (2, 35660014), (4, 17830007), (13, 5486156), (26, 2743078), (52, 1371539), (169, 422012), (338, 211006), (676, 105503)]