20504155

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25471}}^1$

素因数の和:25506

約数の個数: 16

約数和(自身を含む): 29343744

約数和(自身を除く): 8839589

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25471, 127355, 178297, 585833, 891485, 2929165, 4100831, 20504155]

約数ペア:

[(1, 20504155), (5, 4100831), (7, 2929165), (23, 891485), (35, 585833), (115, 178297), (161, 127355), (805, 25471)]