20201207972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{430289}}^1$

素因数の和:430412

約数の個数: 36

約数和(自身を含む): 39258799020

約数和(自身を除く): 19057591048

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 484, 1067, 2134, 4268, 11737, 23474, 46948, 430289, 860578, 1721156, 4733179, 9466358, 18932716, 41738033, 52064969, 83476066, 104129938, 166952132, 208259876, 459118363, 918236726, 1836473452, 5050301993, 10100603986, 20201207972]

約数ペア:

[(1, 20201207972), (2, 10100603986), (4, 5050301993), (11, 1836473452), (22, 918236726), (44, 459118363), (97, 208259876), (121, 166952132), (194, 104129938), (242, 83476066), (388, 52064969), (484, 41738033), (1067, 18932716), (2134, 9466358), (4268, 4733179), (11737, 1721156), (23474, 860578), (46948, 430289)]