18723140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11279}}^1$

素因数の和:11371

約数の個数: 24

約数和(自身を含む): 39795840

約数和(自身を除く): 21072700

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11279, 22558, 45116, 56395, 112790, 225580, 936157, 1872314, 3744628, 4680785, 9361570, 18723140]

約数ペア:

[(1, 18723140), (2, 9361570), (4, 4680785), (5, 3744628), (10, 1872314), (20, 936157), (83, 225580), (166, 112790), (332, 56395), (415, 45116), (830, 22558), (1660, 11279)]