20565496084

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{127139}}^1$

素因数の和:127312

約数の個数: 48

約数和(自身を含む): 42291849600

約数和(自身を除く): 21726353516

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 109, 212, 218, 371, 436, 742, 763, 1484, 1526, 3052, 5777, 11554, 23108, 40439, 80878, 127139, 161756, 254278, 508556, 889973, 1779946, 3559892, 6738367, 13476734, 13858151, 26953468, 27716302, 47168569, 55432604, 94337138, 97007057, 188674276, 194014114, 388028228, 734482003, 1468964006, 2937928012, 5141374021, 10282748042, 20565496084]

約数ペア:

[(1, 20565496084), (2, 10282748042), (4, 5141374021), (7, 2937928012), (14, 1468964006), (28, 734482003), (53, 388028228), (106, 194014114), (109, 188674276), (212, 97007057), (218, 94337138), (371, 55432604), (436, 47168569), (742, 27716302), (763, 26953468), (1484, 13858151), (1526, 13476734), (3052, 6738367), (5777, 3559892), (11554, 1779946), (23108, 889973), (40439, 508556), (80878, 254278), (127139, 161756)]