12181900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2833}}^1$

素因数の和:2890

約数の個数: 36

約数和(自身を含む): 27059032

約数和(自身を除く): 14877132

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 2833, 4300, 5666, 11332, 14165, 28330, 56660, 70825, 121819, 141650, 243638, 283300, 487276, 609095, 1218190, 2436380, 3045475, 6090950, 12181900]

約数ペア:

[(1, 12181900), (2, 6090950), (4, 3045475), (5, 2436380), (10, 1218190), (20, 609095), (25, 487276), (43, 283300), (50, 243638), (86, 141650), (100, 121819), (172, 70825), (215, 56660), (430, 28330), (860, 14165), (1075, 11332), (2150, 5666), (2833, 4300)]