71677480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{911}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 185172480

約数和(自身を除く): 113495000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 911, 1124, 1405, 1822, 1967, 2248, 2810, 3644, 3934, 4555, 5620, 6377, 7288, 7868, 9110, 9835, 11240, 12754, 15736, 18220, 19670, 25508, 31885, 36440, 39340, 51016, 63770, 78680, 127540, 255080, 255991, 511982, 1023964, 1279955, 1791937, 2047928, 2559910, 3583874, 5119820, 7167748, 8959685, 10239640, 14335496, 17919370, 35838740, 71677480]

約数ペア:

[(1, 71677480), (2, 35838740), (4, 17919370), (5, 14335496), (7, 10239640), (8, 8959685), (10, 7167748), (14, 5119820), (20, 3583874), (28, 2559910), (35, 2047928), (40, 1791937), (56, 1279955), (70, 1023964), (140, 511982), (280, 255991), (281, 255080), (562, 127540), (911, 78680), (1124, 63770), (1405, 51016), (1822, 39340), (1967, 36440), (2248, 31885), (2810, 25508), (3644, 19670), (3934, 18220), (4555, 15736), (5620, 12754), (6377, 11240), (7288, 9835), (7868, 9110)]