20176675472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{397429}}^1$

素因数の和:397623

約数の個数: 40

約数和(自身を含む): 41396308800

約数和(自身を除く): 21219633328

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 167, 304, 334, 668, 1336, 2672, 3173, 6346, 12692, 25384, 50768, 397429, 794858, 1589716, 3179432, 6358864, 7551151, 15102302, 30204604, 60409208, 66370643, 120818416, 132741286, 265482572, 530965144, 1061930288, 1261042217, 2522084434, 5044168868, 10088337736, 20176675472]

約数ペア:

[(1, 20176675472), (2, 10088337736), (4, 5044168868), (8, 2522084434), (16, 1261042217), (19, 1061930288), (38, 530965144), (76, 265482572), (152, 132741286), (167, 120818416), (304, 66370643), (334, 60409208), (668, 30204604), (1336, 15102302), (2672, 7551151), (3173, 6358864), (6346, 3179432), (12692, 1589716), (25384, 794858), (50768, 397429)]