18899180

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3593}}^1$

素因数の和:3865

約数の個数: 24

約数和(自身を含む): 39850272

約数和(自身を除く): 20951092

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3593, 5260, 7186, 14372, 17965, 35930, 71860, 944959, 1889918, 3779836, 4724795, 9449590, 18899180]

約数ペア:

[(1, 18899180), (2, 9449590), (4, 4724795), (5, 3779836), (10, 1889918), (20, 944959), (263, 71860), (526, 35930), (1052, 17965), (1315, 14372), (2630, 7186), (3593, 5260)]