138684650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{213361}}^1$

素因数の和:213386

約数の個数: 24

約数和(自身を含む): 277797324

約数和(自身を除く): 139112674

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 213361, 426722, 1066805, 2133610, 2773693, 5334025, 5547386, 10668050, 13868465, 27736930, 69342325, 138684650]

約数ペア:

[(1, 138684650), (2, 69342325), (5, 27736930), (10, 13868465), (13, 10668050), (25, 5547386), (26, 5334025), (50, 2773693), (65, 2133610), (130, 1066805), (325, 426722), (650, 213361)]