81865455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45863}}^1$

素因数の和:45895

約数の個数: 32

約数和(自身を含む): 158505984

約数和(自身を除く): 76640529

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 45863, 137589, 229315, 321041, 687945, 779671, 963123, 1605205, 2339013, 3898355, 4815615, 5457697, 11695065, 16373091, 27288485, 81865455]

約数ペア:

[(1, 81865455), (3, 27288485), (5, 16373091), (7, 11695065), (15, 5457697), (17, 4815615), (21, 3898355), (35, 2339013), (51, 1605205), (85, 963123), (105, 779671), (119, 687945), (255, 321041), (357, 229315), (595, 137589), (1785, 45863)]