20028082172

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1981409}}^1$

素因数の和:1981458

約数の個数: 36

約数和(自身を含む): 42275363760

約数和(自身を除く): 22247281588

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2527, 5054, 10108, 1981409, 3962818, 7925636, 13869863, 27739726, 37646771, 55479452, 75293542, 150587084, 263527397, 527054794, 715288649, 1054109588, 1430577298, 2861154596, 5007020543, 10014041086, 20028082172]

約数ペア:

[(1, 20028082172), (2, 10014041086), (4, 5007020543), (7, 2861154596), (14, 1430577298), (19, 1054109588), (28, 715288649), (38, 527054794), (76, 263527397), (133, 150587084), (266, 75293542), (361, 55479452), (532, 37646771), (722, 27739726), (1444, 13869863), (2527, 7925636), (5054, 3962818), (10108, 1981409)]