# Input credential
$adminUPN="<user>@<tenant>.onmicrosoft.com"
$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."

# Connect to SharePoint Online Admin Center
Connect-SPOService -Url https://<tenant>-admin.sharepoint.com/  -Credential $userCredential

# Get all site collections
$sites = Get-SPOSite -Limit All

# Iterate the site collections
foreach ($site in $sites) {
    Write-Host "Title: "$site.Title
    Write-Host "Url: "$site.Url
    Write-Host "-------------------------"
}