20887090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1303}}^1$

素因数の和:1546

約数の個数: 32

約数和(自身を含む): 43188480

約数和(自身を除く): 22301390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 229, 458, 1145, 1303, 1603, 2290, 2606, 3206, 6515, 8015, 9121, 13030, 16030, 18242, 45605, 91210, 298387, 596774, 1491935, 2088709, 2983870, 4177418, 10443545, 20887090]

約数ペア:

[(1, 20887090), (2, 10443545), (5, 4177418), (7, 2983870), (10, 2088709), (14, 1491935), (35, 596774), (70, 298387), (229, 91210), (458, 45605), (1145, 18242), (1303, 16030), (1603, 13030), (2290, 9121), (2606, 8015), (3206, 6515)]