78459280

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5479}}^1$

素因数の和:5671

約数の個数: 40

約数和(自身を含む): 183470400

約数和(自身を除く): 105011120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 5479, 7160, 10958, 14320, 21916, 27395, 43832, 54790, 87664, 109580, 219160, 438320, 980741, 1961482, 3922964, 4903705, 7845928, 9807410, 15691856, 19614820, 39229640, 78459280]

約数ペア:

[(1, 78459280), (2, 39229640), (4, 19614820), (5, 15691856), (8, 9807410), (10, 7845928), (16, 4903705), (20, 3922964), (40, 1961482), (80, 980741), (179, 438320), (358, 219160), (716, 109580), (895, 87664), (1432, 54790), (1790, 43832), (2864, 27395), (3580, 21916), (5479, 14320), (7160, 10958)]