638961904

素因数分解:

$2^4\times 7^1\times {\mathrm{2341}}^1\times {\mathrm{2437}}^1$

素因数の和:4793

約数の個数: 40

約数和(自身を含む): 1416029408

約数和(自身を除く): 777067504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2341, 2437, 4682, 4874, 9364, 9748, 16387, 17059, 18728, 19496, 32774, 34118, 37456, 38992, 65548, 68236, 131096, 136472, 262192, 272944, 5705017, 11410034, 22820068, 39935119, 45640136, 79870238, 91280272, 159740476, 319480952, 638961904]

約数ペア:

[(1, 638961904), (2, 319480952), (4, 159740476), (7, 91280272), (8, 79870238), (14, 45640136), (16, 39935119), (28, 22820068), (56, 11410034), (112, 5705017), (2341, 272944), (2437, 262192), (4682, 136472), (4874, 131096), (9364, 68236), (9748, 65548), (16387, 38992), (17059, 37456), (18728, 34118), (19496, 32774)]