81543740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177269}}^1$

素因数の和:177301

約数の個数: 24

約数和(自身を含む): 178688160

約数和(自身を除く): 97144420

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177269, 354538, 709076, 886345, 1772690, 3545380, 4077187, 8154374, 16308748, 20385935, 40771870, 81543740]

約数ペア:

[(1, 81543740), (2, 40771870), (4, 20385935), (5, 16308748), (10, 8154374), (20, 4077187), (23, 3545380), (46, 1772690), (92, 886345), (115, 709076), (230, 354538), (460, 177269)]