331314260

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{8287}}^1$

素因数の和:10295

約数の個数: 24

約数和(自身を含む): 696192000

約数和(自身を除く): 364877740

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3998, 7996, 8287, 9995, 16574, 19990, 33148, 39980, 41435, 82870, 165740, 16565713, 33131426, 66262852, 82828565, 165657130, 331314260]

約数ペア:

[(1, 331314260), (2, 165657130), (4, 82828565), (5, 66262852), (10, 33131426), (20, 16565713), (1999, 165740), (3998, 82870), (7996, 41435), (8287, 39980), (9995, 33148), (16574, 19990)]