20205892

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1999}}^1$

素因数の和:2048

約数の個数: 36

約数和(自身を含む): 42672000

約数和(自身を除く): 22466108

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 1999, 2527, 3998, 5054, 7996, 10108, 13993, 27986, 37981, 55972, 75962, 151924, 265867, 531734, 721639, 1063468, 1443278, 2886556, 5051473, 10102946, 20205892]

約数ペア:

[(1, 20205892), (2, 10102946), (4, 5051473), (7, 2886556), (14, 1443278), (19, 1063468), (28, 721639), (38, 531734), (76, 265867), (133, 151924), (266, 75962), (361, 55972), (532, 37981), (722, 27986), (1444, 13993), (1999, 10108), (2527, 7996), (3998, 5054)]