28183085

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3109}}^1$

素因数の和:3165

約数の個数: 24

約数和(自身を含む): 40417560

約数和(自身を除く): 12234475

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 3109, 9065, 15545, 21763, 108815, 115033, 152341, 575165, 761705, 805231, 4026155, 5636617, 28183085]

約数ペア:

[(1, 28183085), (5, 5636617), (7, 4026155), (35, 805231), (37, 761705), (49, 575165), (185, 152341), (245, 115033), (259, 108815), (1295, 21763), (1813, 15545), (3109, 9065)]