12986220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16649}}^1$

素因数の和:16674

約数の個数: 48

約数和(自身を含む): 39160800

約数和(自身を除く): 26174580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 16649, 33298, 49947, 66596, 83245, 99894, 166490, 199788, 216437, 249735, 332980, 432874, 499470, 649311, 865748, 998940, 1082185, 1298622, 2164370, 2597244, 3246555, 4328740, 6493110, 12986220]

約数ペア:

[(1, 12986220), (2, 6493110), (3, 4328740), (4, 3246555), (5, 2597244), (6, 2164370), (10, 1298622), (12, 1082185), (13, 998940), (15, 865748), (20, 649311), (26, 499470), (30, 432874), (39, 332980), (52, 249735), (60, 216437), (65, 199788), (78, 166490), (130, 99894), (156, 83245), (195, 66596), (260, 49947), (390, 33298), (780, 16649)]