19986210

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{937}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 54028800

約数和(自身を除く): 34042590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 90, 135, 158, 237, 270, 395, 474, 711, 790, 937, 1185, 1422, 1874, 2133, 2370, 2811, 3555, 4266, 4685, 5622, 7110, 8433, 9370, 10665, 14055, 16866, 21330, 25299, 28110, 42165, 50598, 74023, 84330, 126495, 148046, 222069, 252990, 370115, 444138, 666207, 740230, 1110345, 1332414, 1998621, 2220690, 3331035, 3997242, 6662070, 9993105, 19986210]

約数ペア:

[(1, 19986210), (2, 9993105), (3, 6662070), (5, 3997242), (6, 3331035), (9, 2220690), (10, 1998621), (15, 1332414), (18, 1110345), (27, 740230), (30, 666207), (45, 444138), (54, 370115), (79, 252990), (90, 222069), (135, 148046), (158, 126495), (237, 84330), (270, 74023), (395, 50598), (474, 42165), (711, 28110), (790, 25299), (937, 21330), (1185, 16866), (1422, 14055), (1874, 10665), (2133, 9370), (2370, 8433), (2811, 7110), (3555, 5622), (4266, 4685)]