20706085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 27620352

約数和(自身を除く): 6914267

約数列:

[1, 5, 17, 47, 71, 73, 85, 235, 355, 365, 799, 1207, 1241, 3337, 3431, 3995, 5183, 6035, 6205, 16685, 17155, 25915, 56729, 58327, 88111, 243601, 283645, 291635, 440555, 1218005, 4141217, 20706085]

約数ペア:

[(1, 20706085), (5, 4141217), (17, 1218005), (47, 440555), (71, 291635), (73, 283645), (85, 243601), (235, 88111), (355, 58327), (365, 56729), (799, 25915), (1207, 17155), (1241, 16685), (3337, 6205), (3431, 6035), (3995, 5183)]