20145532

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:522

約数の個数: 36

約数和(自身を含む): 39213720

約数和(自身を除く): 19068188

約数列:

[1, 2, 4, 11, 22, 44, 107, 121, 214, 242, 389, 428, 484, 778, 1177, 1556, 2354, 4279, 4708, 8558, 12947, 17116, 25894, 41623, 47069, 51788, 83246, 94138, 166492, 188276, 457853, 915706, 1831412, 5036383, 10072766, 20145532]

約数ペア:

[(1, 20145532), (2, 10072766), (4, 5036383), (11, 1831412), (22, 915706), (44, 457853), (107, 188276), (121, 166492), (214, 94138), (242, 83246), (389, 51788), (428, 47069), (484, 41623), (778, 25894), (1177, 17116), (1556, 12947), (2354, 8558), (4279, 4708)]