128957140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{38153}}^1$

素因数の和:38188

約数の個数: 36

約数和(自身を含む): 293251644

約数和(自身を除く): 164294504

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 38153, 76306, 152612, 190765, 381530, 495989, 763060, 991978, 1983956, 2479945, 4959890, 6447857, 9919780, 12895714, 25791428, 32239285, 64478570, 128957140]

約数ペア:

[(1, 128957140), (2, 64478570), (4, 32239285), (5, 25791428), (10, 12895714), (13, 9919780), (20, 6447857), (26, 4959890), (52, 2479945), (65, 1983956), (130, 991978), (169, 763060), (260, 495989), (338, 381530), (676, 190765), (845, 152612), (1690, 76306), (3380, 38153)]