28927885

素因数分解:

$5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1663}}^1$

素因数の和:1753

約数の個数: 24

約数和(自身を含む): 40974336

約数和(自身を除く): 12046451

約数列:

[1, 5, 7, 35, 49, 71, 245, 355, 497, 1663, 2485, 3479, 8315, 11641, 17395, 58205, 81487, 118073, 407435, 590365, 826511, 4132555, 5785577, 28927885]

約数ペア:

[(1, 28927885), (5, 5785577), (7, 4132555), (35, 826511), (49, 590365), (71, 407435), (245, 118073), (355, 81487), (497, 58205), (1663, 17395), (2485, 11641), (3479, 8315)]