206857990

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1\times {\mathrm{877}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 378031680

約数和(自身を除く): 171173690

約数列:

[1, 2, 5, 10, 103, 206, 229, 458, 515, 877, 1030, 1145, 1754, 2290, 4385, 8770, 23587, 47174, 90331, 117935, 180662, 200833, 235870, 401666, 451655, 903310, 1004165, 2008330, 20685799, 41371598, 103428995, 206857990]

約数ペア:

[(1, 206857990), (2, 103428995), (5, 41371598), (10, 20685799), (103, 2008330), (206, 1004165), (229, 903310), (458, 451655), (515, 401666), (877, 235870), (1030, 200833), (1145, 180662), (1754, 117935), (2290, 90331), (4385, 47174), (8770, 23587)]