20786080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:366

約数の個数: 96

約数和(自身を含む): 57165696

約数和(自身を除く): 36379616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 67, 70, 80, 112, 134, 140, 160, 224, 268, 277, 280, 335, 469, 536, 554, 560, 670, 938, 1072, 1108, 1120, 1340, 1385, 1876, 1939, 2144, 2216, 2345, 2680, 2770, 3752, 3878, 4432, 4690, 5360, 5540, 7504, 7756, 8864, 9380, 9695, 10720, 11080, 15008, 15512, 18559, 18760, 19390, 22160, 31024, 37118, 37520, 38780, 44320, 62048, 74236, 75040, 77560, 92795, 129913, 148472, 155120, 185590, 259826, 296944, 310240, 371180, 519652, 593888, 649565, 742360, 1039304, 1299130, 1484720, 2078608, 2598260, 2969440, 4157216, 5196520, 10393040, 20786080]

約数ペア:

[(1, 20786080), (2, 10393040), (4, 5196520), (5, 4157216), (7, 2969440), (8, 2598260), (10, 2078608), (14, 1484720), (16, 1299130), (20, 1039304), (28, 742360), (32, 649565), (35, 593888), (40, 519652), (56, 371180), (67, 310240), (70, 296944), (80, 259826), (112, 185590), (134, 155120), (140, 148472), (160, 129913), (224, 92795), (268, 77560), (277, 75040), (280, 74236), (335, 62048), (469, 44320), (536, 38780), (554, 37520), (560, 37118), (670, 31024), (938, 22160), (1072, 19390), (1108, 18760), (1120, 18559), (1340, 15512), (1385, 15008), (1876, 11080), (1939, 10720), (2144, 9695), (2216, 9380), (2345, 8864), (2680, 7756), (2770, 7504), (3752, 5540), (3878, 5360), (4432, 4690)]