19969960

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1153}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 45075240

約数和(自身を除く): 25105280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1153, 1732, 2165, 2306, 3464, 4330, 4612, 5765, 8660, 9224, 11530, 17320, 23060, 46120, 499249, 998498, 1996996, 2496245, 3993992, 4992490, 9984980, 19969960]

約数ペア:

[(1, 19969960), (2, 9984980), (4, 4992490), (5, 3993992), (8, 2496245), (10, 1996996), (20, 998498), (40, 499249), (433, 46120), (866, 23060), (1153, 17320), (1732, 11530), (2165, 9224), (2306, 8660), (3464, 5765), (4330, 4612)]