18139540

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5431}}^1$

素因数の和:5607

約数の個数: 24

約数和(自身を含む): 38328192

約数和(自身を除く): 20188652

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 5431, 10862, 21724, 27155, 54310, 108620, 906977, 1813954, 3627908, 4534885, 9069770, 18139540]

約数ペア:

[(1, 18139540), (2, 9069770), (4, 4534885), (5, 3627908), (10, 1813954), (20, 906977), (167, 108620), (334, 54310), (668, 27155), (835, 21724), (1670, 10862), (3340, 5431)]