128905784

素因数分解:

$2^3\times 7^1\times {\mathrm{2301889}}^1$

素因数の和:2301902

約数の個数: 16

約数和(自身を含む): 276226800

約数和(自身を除く): 147321016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2301889, 4603778, 9207556, 16113223, 18415112, 32226446, 64452892, 128905784]

約数ペア:

[(1, 128905784), (2, 64452892), (4, 32226446), (7, 18415112), (8, 16113223), (14, 9207556), (28, 4603778), (56, 2301889)]