28197295

素因数分解:

$5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1711

約数の個数: 24

約数和(自身を含む): 39940128

約数和(自身を除く): 11742833

約数列:

[1, 5, 7, 35, 49, 71, 245, 355, 497, 1621, 2485, 3479, 8105, 11347, 17395, 56735, 79429, 115091, 397145, 575455, 805637, 4028185, 5639459, 28197295]

約数ペア:

[(1, 28197295), (5, 5639459), (7, 4028185), (35, 805637), (49, 575455), (71, 397145), (245, 115091), (355, 79429), (497, 56735), (1621, 17395), (2485, 11347), (3479, 8105)]