208005

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{283}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 388512

約数和(自身を除く): 180507

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 283, 735, 849, 1415, 1981, 4245, 5943, 9905, 13867, 29715, 41601, 69335, 208005]

約数ペア:

[(1, 208005), (3, 69335), (5, 41601), (7, 29715), (15, 13867), (21, 9905), (35, 5943), (49, 4245), (105, 1981), (147, 1415), (245, 849), (283, 735)]