20167687940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{486907}}^1$

素因数の和:487044

約数の個数: 48

約数和(自身を含む): 44990299200

約数和(自身を除く): 24822611260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 2071, 2180, 4142, 8284, 10355, 20710, 41420, 486907, 973814, 1947628, 2434535, 4869070, 9251233, 9738140, 18502466, 37004932, 46256165, 53072863, 92512330, 106145726, 185024660, 212291452, 265364315, 530728630, 1008384397, 1061457260, 2016768794, 4033537588, 5041921985, 10083843970, 20167687940]

約数ペア:

[(1, 20167687940), (2, 10083843970), (4, 5041921985), (5, 4033537588), (10, 2016768794), (19, 1061457260), (20, 1008384397), (38, 530728630), (76, 265364315), (95, 212291452), (109, 185024660), (190, 106145726), (218, 92512330), (380, 53072863), (436, 46256165), (545, 37004932), (1090, 18502466), (2071, 9738140), (2180, 9251233), (4142, 4869070), (8284, 2434535), (10355, 1947628), (20710, 973814), (41420, 486907)]