204020465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{161281}}^1$

素因数の和:161320

約数の個数: 16

約数和(自身を含む): 278695296

約数和(自身を除く): 74674831

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 161281, 806405, 1774091, 3709463, 8870455, 18547315, 40804093, 204020465]

約数ペア:

[(1, 204020465), (5, 40804093), (11, 18547315), (23, 8870455), (55, 3709463), (115, 1774091), (253, 806405), (1265, 161281)]