19527520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 48045312

約数和(自身を除く): 28517792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 496, 508, 620, 635, 961, 992, 1016, 1240, 1270, 1922, 2032, 2480, 2540, 3844, 3937, 4064, 4805, 4960, 5080, 7688, 7874, 9610, 10160, 15376, 15748, 19220, 19685, 20320, 30752, 31496, 38440, 39370, 62992, 76880, 78740, 122047, 125984, 153760, 157480, 244094, 314960, 488188, 610235, 629920, 976376, 1220470, 1952752, 2440940, 3905504, 4881880, 9763760, 19527520]

約数ペア:

[(1, 19527520), (2, 9763760), (4, 4881880), (5, 3905504), (8, 2440940), (10, 1952752), (16, 1220470), (20, 976376), (31, 629920), (32, 610235), (40, 488188), (62, 314960), (80, 244094), (124, 157480), (127, 153760), (155, 125984), (160, 122047), (248, 78740), (254, 76880), (310, 62992), (496, 39370), (508, 38440), (620, 31496), (635, 30752), (961, 20320), (992, 19685), (1016, 19220), (1240, 15748), (1270, 15376), (1922, 10160), (2032, 9610), (2480, 7874), (2540, 7688), (3844, 5080), (3937, 4960), (4064, 4805)]