20048620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12689}}^1$

素因数の和:12777

約数の個数: 24

約数和(自身を含む): 42638400

約数和(自身を除く): 22589780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12689, 25378, 50756, 63445, 126890, 253780, 1002431, 2004862, 4009724, 5012155, 10024310, 20048620]

約数ペア:

[(1, 20048620), (2, 10024310), (4, 5012155), (5, 4009724), (10, 2004862), (20, 1002431), (79, 253780), (158, 126890), (316, 63445), (395, 50756), (790, 25378), (1580, 12689)]