20806916728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1489}}^1\times {\mathrm{134363}}^1$

素因数の和:135871

約数の個数: 32

約数和(自身を含む): 42042495600

約数和(自身を除く): 21235578872

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1489, 2978, 5956, 11912, 19357, 38714, 77428, 134363, 154856, 268726, 537452, 1074904, 1746719, 3493438, 6986876, 13973752, 200066507, 400133014, 800266028, 1600532056, 2600864591, 5201729182, 10403458364, 20806916728]

約数ペア:

[(1, 20806916728), (2, 10403458364), (4, 5201729182), (8, 2600864591), (13, 1600532056), (26, 800266028), (52, 400133014), (104, 200066507), (1489, 13973752), (2978, 6986876), (5956, 3493438), (11912, 1746719), (19357, 1074904), (38714, 537452), (77428, 268726), (134363, 154856)]