20154475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{883}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 27623232

約数和(自身を除く): 7468757

約数列:

[1, 5, 11, 25, 55, 83, 275, 415, 883, 913, 2075, 4415, 4565, 9713, 22075, 22825, 48565, 73289, 242825, 366445, 806179, 1832225, 4030895, 20154475]

約数ペア:

[(1, 20154475), (5, 4030895), (11, 1832225), (25, 806179), (55, 366445), (83, 242825), (275, 73289), (415, 48565), (883, 22825), (913, 22075), (2075, 9713), (4415, 4565)]