12878820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71549}}^1$

素因数の和:71564

約数の個数: 36

約数和(自身を含む): 39066300

約数和(自身を除く): 26187480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 71549, 143098, 214647, 286196, 357745, 429294, 643941, 715490, 858588, 1073235, 1287882, 1430980, 2146470, 2575764, 3219705, 4292940, 6439410, 12878820]

約数ペア:

[(1, 12878820), (2, 6439410), (3, 4292940), (4, 3219705), (5, 2575764), (6, 2146470), (9, 1430980), (10, 1287882), (12, 1073235), (15, 858588), (18, 715490), (20, 643941), (30, 429294), (36, 357745), (45, 286196), (60, 214647), (90, 143098), (180, 71549)]