12821276155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1237}}^1\times {\mathrm{1999}}^1$

素因数の和:3319

約数の個数: 32

約数和(自身を含む): 16579296000

約数和(自身を除く): 3758019845

約数列:

[1, 5, 17, 61, 85, 305, 1037, 1237, 1999, 5185, 6185, 9995, 21029, 33983, 75457, 105145, 121939, 169915, 377285, 609695, 1282769, 2072963, 2472763, 6413845, 10364815, 12363815, 42036971, 150838543, 210184855, 754192715, 2564255231, 12821276155]

約数ペア:

[(1, 12821276155), (5, 2564255231), (17, 754192715), (61, 210184855), (85, 150838543), (305, 42036971), (1037, 12363815), (1237, 10364815), (1999, 6413845), (5185, 2472763), (6185, 2072963), (9995, 1282769), (21029, 609695), (33983, 377285), (75457, 169915), (105145, 121939)]