19796240

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{701}}^1$

素因数の和:1067

約数の個数: 40

約数和(自身を含む): 46222488

約数和(自身を除く): 26426248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 701, 706, 1402, 1412, 1765, 2804, 2824, 3505, 3530, 5608, 5648, 7010, 7060, 11216, 14020, 14120, 28040, 28240, 56080, 247453, 494906, 989812, 1237265, 1979624, 2474530, 3959248, 4949060, 9898120, 19796240]

約数ペア:

[(1, 19796240), (2, 9898120), (4, 4949060), (5, 3959248), (8, 2474530), (10, 1979624), (16, 1237265), (20, 989812), (40, 494906), (80, 247453), (353, 56080), (701, 28240), (706, 28040), (1402, 14120), (1412, 14020), (1765, 11216), (2804, 7060), (2824, 7010), (3505, 5648), (3530, 5608)]