128565985

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{193}}^1\times {\mathrm{461}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 165094776

約数和(自身を除く): 36528791

約数列:

[1, 5, 17, 85, 193, 289, 461, 965, 1445, 2305, 3281, 7837, 16405, 39185, 55777, 88973, 133229, 278885, 444865, 666145, 1512541, 7562705, 25713197, 128565985]

約数ペア:

[(1, 128565985), (5, 25713197), (17, 7562705), (85, 1512541), (193, 666145), (289, 444865), (461, 278885), (965, 133229), (1445, 88973), (2305, 55777), (3281, 39185), (7837, 16405)]