28087085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 10233043

約数列:

[1, 5, 13, 31, 53, 65, 155, 263, 265, 403, 689, 1315, 1643, 2015, 3419, 3445, 8153, 8215, 13939, 17095, 21359, 40765, 69695, 105989, 106795, 181207, 432109, 529945, 906035, 2160545, 5617417, 28087085]

約数ペア:

[(1, 28087085), (5, 5617417), (13, 2160545), (31, 906035), (53, 529945), (65, 432109), (155, 181207), (263, 106795), (265, 105989), (403, 69695), (689, 40765), (1315, 21359), (1643, 17095), (2015, 13939), (3419, 8215), (3445, 8153)]