19945100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28493}}^1$

素因数の和:28514

約数の個数: 36

約数和(自身を含む): 49465584

約数和(自身を除く): 29520484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28493, 56986, 113972, 142465, 199451, 284930, 398902, 569860, 712325, 797804, 997255, 1424650, 1994510, 2849300, 3989020, 4986275, 9972550, 19945100]

約数ペア:

[(1, 19945100), (2, 9972550), (4, 4986275), (5, 3989020), (7, 2849300), (10, 1994510), (14, 1424650), (20, 997255), (25, 797804), (28, 712325), (35, 569860), (50, 398902), (70, 284930), (100, 199451), (140, 142465), (175, 113972), (350, 56986), (700, 28493)]