12678540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30187}}^1$

素因数の和:30206

約数の個数: 48

約数和(自身を含む): 40572672

約数和(自身を除く): 27894132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 30187, 60374, 90561, 120748, 150935, 181122, 211309, 301870, 362244, 422618, 452805, 603740, 633927, 845236, 905610, 1056545, 1267854, 1811220, 2113090, 2535708, 3169635, 4226180, 6339270, 12678540]

約数ペア:

[(1, 12678540), (2, 6339270), (3, 4226180), (4, 3169635), (5, 2535708), (6, 2113090), (7, 1811220), (10, 1267854), (12, 1056545), (14, 905610), (15, 845236), (20, 633927), (21, 603740), (28, 452805), (30, 422618), (35, 362244), (42, 301870), (60, 211309), (70, 181122), (84, 150935), (105, 120748), (140, 90561), (210, 60374), (420, 30187)]