20640936

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 54817920

約数和(自身を除く): 34176984

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 61, 69, 92, 122, 138, 183, 184, 244, 276, 366, 488, 552, 613, 732, 1226, 1403, 1464, 1839, 2452, 2806, 3678, 4209, 4904, 5612, 7356, 8418, 11224, 14099, 14712, 16836, 28198, 33672, 37393, 42297, 56396, 74786, 84594, 112179, 112792, 149572, 169188, 224358, 299144, 338376, 448716, 860039, 897432, 1720078, 2580117, 3440156, 5160234, 6880312, 10320468, 20640936]

約数ペア:

[(1, 20640936), (2, 10320468), (3, 6880312), (4, 5160234), (6, 3440156), (8, 2580117), (12, 1720078), (23, 897432), (24, 860039), (46, 448716), (61, 338376), (69, 299144), (92, 224358), (122, 169188), (138, 149572), (183, 112792), (184, 112179), (244, 84594), (276, 74786), (366, 56396), (488, 42297), (552, 37393), (613, 33672), (732, 28198), (1226, 16836), (1403, 14712), (1464, 14099), (1839, 11224), (2452, 8418), (2806, 7356), (3678, 5612), (4209, 4904)]