18526820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71257}}^1$

素因数の和:71279

約数の個数: 24

約数和(自身を含む): 41899704

約数和(自身を除く): 23372884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71257, 142514, 285028, 356285, 712570, 926341, 1425140, 1852682, 3705364, 4631705, 9263410, 18526820]

約数ペア:

[(1, 18526820), (2, 9263410), (4, 4631705), (5, 3705364), (10, 1852682), (13, 1425140), (20, 926341), (26, 712570), (52, 356285), (65, 285028), (130, 142514), (260, 71257)]