209725635

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{40763}}^1$

素因数の和:40792

約数の個数: 32

約数和(自身を含む): 391334400

約数和(自身を除く): 181608765

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 40763, 122289, 203815, 285341, 611445, 856023, 1426705, 1997387, 4280115, 5992161, 9986935, 13981709, 29960805, 41945127, 69908545, 209725635]

約数ペア:

[(1, 209725635), (3, 69908545), (5, 41945127), (7, 29960805), (15, 13981709), (21, 9986935), (35, 5992161), (49, 4280115), (105, 1997387), (147, 1426705), (245, 856023), (343, 611445), (735, 285341), (1029, 203815), (1715, 122289), (5145, 40763)]