20534725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2543}}^1$

素因数の和:2589

約数の個数: 24

約数和(自身を含む): 28391040

約数和(自身を除く): 7856315

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2543, 8075, 12715, 43231, 48317, 63575, 216155, 241585, 821389, 1080775, 1207925, 4106945, 20534725]

約数ペア:

[(1, 20534725), (5, 4106945), (17, 1207925), (19, 1080775), (25, 821389), (85, 241585), (95, 216155), (323, 63575), (425, 48317), (475, 43231), (1615, 12715), (2543, 8075)]