25295620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{643}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 61020288

約数和(自身を除く): 35724668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 643, 1124, 1286, 1405, 1967, 2572, 2810, 3215, 3934, 4501, 5620, 6430, 7868, 9002, 9835, 12860, 18004, 19670, 22505, 39340, 45010, 90020, 180683, 361366, 722732, 903415, 1264781, 1806830, 2529562, 3613660, 5059124, 6323905, 12647810, 25295620]

約数ペア:

[(1, 25295620), (2, 12647810), (4, 6323905), (5, 5059124), (7, 3613660), (10, 2529562), (14, 1806830), (20, 1264781), (28, 903415), (35, 722732), (70, 361366), (140, 180683), (281, 90020), (562, 45010), (643, 39340), (1124, 22505), (1286, 19670), (1405, 18004), (1967, 12860), (2572, 9835), (2810, 9002), (3215, 7868), (3934, 6430), (4501, 5620)]