25711280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{937}}^1$

素因数の和:971

約数の個数: 80

約数和(自身を含む): 69787200

約数和(自身を除く): 44075920

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, 343, 392, 490, 560, 686, 784, 937, 980, 1372, 1715, 1874, 1960, 2744, 3430, 3748, 3920, 4685, 5488, 6559, 6860, 7496, 9370, 13118, 13720, 14992, 18740, 26236, 27440, 32795, 37480, 45913, 52472, 65590, 74960, 91826, 104944, 131180, 183652, 229565, 262360, 321391, 367304, 459130, 524720, 642782, 734608, 918260, 1285564, 1606955, 1836520, 2571128, 3213910, 3673040, 5142256, 6427820, 12855640, 25711280]

約数ペア:

[(1, 25711280), (2, 12855640), (4, 6427820), (5, 5142256), (7, 3673040), (8, 3213910), (10, 2571128), (14, 1836520), (16, 1606955), (20, 1285564), (28, 918260), (35, 734608), (40, 642782), (49, 524720), (56, 459130), (70, 367304), (80, 321391), (98, 262360), (112, 229565), (140, 183652), (196, 131180), (245, 104944), (280, 91826), (343, 74960), (392, 65590), (490, 52472), (560, 45913), (686, 37480), (784, 32795), (937, 27440), (980, 26236), (1372, 18740), (1715, 14992), (1874, 13720), (1960, 13118), (2744, 9370), (3430, 7496), (3748, 6860), (3920, 6559), (4685, 5488)]