168546820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{648257}}^1$

素因数の和:648279

約数の個数: 24

約数和(自身を含む): 381175704

約数和(自身を除く): 212628884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 648257, 1296514, 2593028, 3241285, 6482570, 8427341, 12965140, 16854682, 33709364, 42136705, 84273410, 168546820]

約数ペア:

[(1, 168546820), (2, 84273410), (4, 42136705), (5, 33709364), (10, 16854682), (13, 12965140), (20, 8427341), (26, 6482570), (52, 3241285), (65, 2593028), (130, 1296514), (260, 648257)]