19964980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142607}}^1$

素因数の和:142623

約数の個数: 24

約数和(自身を含む): 47916288

約数和(自身を除く): 27951308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142607, 285214, 570428, 713035, 998249, 1426070, 1996498, 2852140, 3992996, 4991245, 9982490, 19964980]

約数ペア:

[(1, 19964980), (2, 9982490), (4, 4991245), (5, 3992996), (7, 2852140), (10, 1996498), (14, 1426070), (20, 998249), (28, 713035), (35, 570428), (70, 285214), (140, 142607)]