12987020

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5113}}^1$

素因数の和:5249

約数の個数: 24

約数和(自身を含む): 27492864

約数和(自身を除く): 14505844

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 5113, 10226, 20452, 25565, 51130, 102260, 649351, 1298702, 2597404, 3246755, 6493510, 12987020]

約数ペア:

[(1, 12987020), (2, 6493510), (4, 3246755), (5, 2597404), (10, 1298702), (20, 649351), (127, 102260), (254, 51130), (508, 25565), (635, 20452), (1270, 10226), (2540, 5113)]