7640080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{1949}}^1$

素因数の和:1976

約数の個数: 60

約数和(自身を含む): 20673900

約数和(自身を除く): 13033820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1949, 1960, 3898, 3920, 7796, 9745, 13643, 15592, 19490, 27286, 31184, 38980, 54572, 68215, 77960, 95501, 109144, 136430, 155920, 191002, 218288, 272860, 382004, 477505, 545720, 764008, 955010, 1091440, 1528016, 1910020, 3820040, 7640080]

約数ペア:

[(1, 7640080), (2, 3820040), (4, 1910020), (5, 1528016), (7, 1091440), (8, 955010), (10, 764008), (14, 545720), (16, 477505), (20, 382004), (28, 272860), (35, 218288), (40, 191002), (49, 155920), (56, 136430), (70, 109144), (80, 95501), (98, 77960), (112, 68215), (140, 54572), (196, 38980), (245, 31184), (280, 27286), (392, 19490), (490, 15592), (560, 13643), (784, 9745), (980, 7796), (1949, 3920), (1960, 3898)]