18786660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{887}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 52811136

約数和(自身を除く): 34024476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353, 706, 887, 1059, 1412, 1765, 1774, 2118, 2661, 3530, 3548, 4236, 4435, 5295, 5322, 7060, 8870, 10590, 10644, 13305, 17740, 21180, 26610, 53220, 313111, 626222, 939333, 1252444, 1565555, 1878666, 3131110, 3757332, 4696665, 6262220, 9393330, 18786660]

約数ペア:

[(1, 18786660), (2, 9393330), (3, 6262220), (4, 4696665), (5, 3757332), (6, 3131110), (10, 1878666), (12, 1565555), (15, 1252444), (20, 939333), (30, 626222), (60, 313111), (353, 53220), (706, 26610), (887, 21180), (1059, 17740), (1412, 13305), (1765, 10644), (1774, 10590), (2118, 8870), (2661, 7060), (3530, 5322), (3548, 5295), (4236, 4435)]