890064020

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{82261}}^1$

素因数の和:82811

約数の個数: 24

約数和(自身を含む): 1872612168

約数和(自身を除く): 982548148

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 82261, 164522, 329044, 411305, 822610, 1645220, 44503201, 89006402, 178012804, 222516005, 445032010, 890064020]

約数ペア:

[(1, 890064020), (2, 445032010), (4, 222516005), (5, 178012804), (10, 89006402), (20, 44503201), (541, 1645220), (1082, 822610), (2164, 411305), (2705, 329044), (5410, 164522), (10820, 82261)]