168345980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{765209}}^1$

素因数の和:765229

約数の個数: 24

約数和(自身を含む): 385665840

約数和(自身を除く): 217319860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 765209, 1530418, 3060836, 3826045, 7652090, 8417299, 15304180, 16834598, 33669196, 42086495, 84172990, 168345980]

約数ペア:

[(1, 168345980), (2, 84172990), (4, 42086495), (5, 33669196), (10, 16834598), (11, 15304180), (20, 8417299), (22, 7652090), (44, 3826045), (55, 3060836), (110, 1530418), (220, 765209)]