61686820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{237257}}^1$

素因数の和:237279

約数の個数: 24

約数和(自身を含む): 139507704

約数和(自身を除く): 77820884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 237257, 474514, 949028, 1186285, 2372570, 3084341, 4745140, 6168682, 12337364, 15421705, 30843410, 61686820]

約数ペア:

[(1, 61686820), (2, 30843410), (4, 15421705), (5, 12337364), (10, 6168682), (13, 4745140), (20, 3084341), (26, 2372570), (52, 1186285), (65, 949028), (130, 474514), (260, 237257)]