28367985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2099}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 48988800

約数和(自身を除く): 20620815

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 2099, 2703, 4505, 6297, 10495, 13515, 31485, 35683, 107049, 111247, 178415, 333741, 535245, 556235, 1668705, 1891199, 5673597, 9455995, 28367985]

約数ペア:

[(1, 28367985), (3, 9455995), (5, 5673597), (15, 1891199), (17, 1668705), (51, 556235), (53, 535245), (85, 333741), (159, 178415), (255, 111247), (265, 107049), (795, 35683), (901, 31485), (2099, 13515), (2703, 10495), (4505, 6297)]