20648020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44887}}^1$

素因数の和:44919

約数の個数: 24

約数和(自身を含む): 45247104

約数和(自身を除く): 24599084

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44887, 89774, 179548, 224435, 448870, 897740, 1032401, 2064802, 4129604, 5162005, 10324010, 20648020]

約数ペア:

[(1, 20648020), (2, 10324010), (4, 5162005), (5, 4129604), (10, 2064802), (20, 1032401), (23, 897740), (46, 448870), (92, 224435), (115, 179548), (230, 89774), (460, 44887)]