12221720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43649}}^1$

素因数の和:43667

約数の個数: 32

約数和(自身を含む): 31428000

約数和(自身を除く): 19206280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 43649, 87298, 174596, 218245, 305543, 349192, 436490, 611086, 872980, 1222172, 1527715, 1745960, 2444344, 3055430, 6110860, 12221720]

約数ペア:

[(1, 12221720), (2, 6110860), (4, 3055430), (5, 2444344), (7, 1745960), (8, 1527715), (10, 1222172), (14, 872980), (20, 611086), (28, 436490), (35, 349192), (40, 305543), (56, 218245), (70, 174596), (140, 87298), (280, 43649)]