128565729

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{2579}}^1$

素因数の和:2805

約数の個数: 24

約数和(自身を含む): 193190400

約数和(自身を除く): 64624671

約数列:

[1, 3, 9, 29, 87, 191, 261, 573, 1719, 2579, 5539, 7737, 16617, 23211, 49851, 74791, 224373, 492589, 673119, 1477767, 4433301, 14285081, 42855243, 128565729]

約数ペア:

[(1, 128565729), (3, 42855243), (9, 14285081), (29, 4433301), (87, 1477767), (191, 673119), (261, 492589), (573, 224373), (1719, 74791), (2579, 49851), (5539, 23211), (7737, 16617)]