20135815

素因数分解:

$5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 28800000

約数和(自身を除く): 8664185

約数列:

[1, 5, 7, 35, 49, 59, 199, 245, 295, 343, 413, 995, 1393, 1715, 2065, 2891, 6965, 9751, 11741, 14455, 20237, 48755, 58705, 68257, 82187, 101185, 341285, 410935, 575309, 2876545, 4027163, 20135815]

約数ペア:

[(1, 20135815), (5, 4027163), (7, 2876545), (35, 575309), (49, 410935), (59, 341285), (199, 101185), (245, 82187), (295, 68257), (343, 58705), (413, 48755), (995, 20237), (1393, 14455), (1715, 11741), (2065, 9751), (2891, 6965)]